Chevy 10 bolt rear end gear ratio. 202/pbkmst/how-to-turn-off-audio-description-on-spectrum.

Chevy 10 bolt rear end gear ratio. The tire sizes are 295/45/20 (30.

1. This gear ratio will allow the engine to turn 10,41 times per minute. Just trying to keep the engine happy an lower rpm a bit. CW 0109B for 3. 875" GM 12 Bolt Truck, 3. 12-bolt Oldsmobile The rear end axle is responsible for transmitting power to the rear wheels in a rear-wheel-drive vehicle. Mine was 2. 5" 10-Bolt Rear End fits the following vehicle(s): 2005 Cadillac Escalade 2008 Cadillac Escalade 2009 Cadillac Escalade 2010 Cadillac Escalade 2011 Cadillac Escalade 2012 Cadillac Escalade 2013 Cadillac Escalade 2014 Cadillac Escalade 1999 Chevrolet Silverado 1500 Find 1987 CHEVROLET R10 Differential & Rear-End Components and get Free Shipping on Orders Over $109 at Summit Racing! Limited Slip, 30-Spline, 3. 73 Ratio https://a. It has a 10 bolt rear end with 3:23 gear ratio. 25" OD Axle Bearings & Seals Part Number: YGA-10609 Not Yet Reviewed The rear axle identification code is stamped on the axle housing on the bottom, front left, or front right axle tube next to the carrier housing or about 8 to 12 inches from the backing plates. did it replace 8. These sizes refer to the diameter of the ring gear, and the one you use makes a big difference in the performance potential. I was looking at summit and the ring and pinion gear set is only 159. 73 gear set for the 10 bolt, I'll adapt it to fit under my truck. 55 GV1 Rear Axle 2. 56 overall 1st gear. 56 Gear Set, 3-Series Carrier, GM 8. 625. It has a 8 1/2 inch ring gear with 10 bolts and the axle have no c clips. 2 10 Bolt Differential Parts - Posi Units - Gears - Bearing Kits - 10 bolt cover with 8. 2 rearend not an early bolt-in axle Pontiac 8. 70 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers Part Number: CUR-CR-GA137TWAB 3. 73 factory gears,non SS,it has 4. And their tech support is first rate. 40 ratio and put that rear end. Jul 17, 2024 · Identifying a GM 10-bolt rear end housing requires measurements, locating casting numbers, and knowing what to look for. 5" diameter ring gear and the GM 8. 5" 10-bolt. Pinion Gear. What are my other options? I could try and find another 68-72 8. Thanks JB! It still breaks them loose but. 73 ratio carriers. I use the GM special tools, go through the measurements, do contact pattern analysis, and much more! Sep 23, 2018 · Many General Motors vehicles can benefit from the replacement of their original differential assemblies with a stronger 12-bolt, 8. 72: GV9: Axle Rear: 4. 5" 10-Bolt Rear End fits the following vehicle(s): 2005 Cadillac Escalade 2008 Cadillac Escalade 2009 Cadillac Escalade 2010 Cadillac Escalade 2011 Cadillac Escalade 2012 Cadillac Escalade 2013 Cadillac Escalade 2014 Cadillac Escalade 1999 Chevrolet Silverado 1500 Revolution Gear and Axle ring and pinion manufactured to be compatible with GM 8. 56:1 Ring and Pinion Ratio and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase - Get the App May 24, 2009 · The gear ratios available from the factory in 1972 (RPO) were 2. 08 gears and diff It wasn't until late 1972 that the 10 bolt 8. 81 out of 5 stars Find 1984 CHEVROLET C10 Differential & Rear-End Components and get Free Shipping on Orders Over $109 at Summit Racing! 30-Spline, 3. 42 and that I might be limited to 3. This rear end was available in a 10 bolt version only. 29 ratio GU1-2. 5" 10 Bolt Ring & Pinion Gear Set; GM 8. 5-inch axle, commonly referred to as either a 14-bolt or corporate 14-bolt, is a full-floating axle. 00 for 3. 36, 3. I have one truck with a 4. 12-bolt Chevrolet. Much better! 2700 at 60 now on the highway but that's okay. I think I checked the axle tube once and it had the code for a 3. 5" ring gear was used in Chevelles. This gear ratio is ideal for off-road use because it provides plenty of torque and allows the vehicle to travel at high speeds. 73 ratio. 42 Series 4 = 3. 6 Inch differentials. The axle code is on the front of the passenger side axle tube and look's like CCW 0629B-example. 875-inch differential. Jul 12, 2014 · Greetings all; I'm changing out the ring and pinion from my factory JM stamped axle tube 2. C/clip rear could have 28 or 30 spline axles. 73 so guess I could swap the trans in and have the rear end rebuilt and gear swapped, or sell the muncie and look into that new Keisler t45rs decisions decisions Ring and Pinion Gears and Installation Kit, 8. 6 inch 10 BOLT Rear End Parts. My 55's 10-bolt (from a late 70s Malibu) has 3. 08 GV4 12-Bolt Casting #3859140 10-Bolt Casting #3859139 10-Bolt Casting #3863495 * The casting numbers/letters on rear end housings may have either a prefix or suffix of "N" or "NF" and no reason has been found yet why they may have one or the other. 5in 10 bolt axle G89-7. 14 bolt 10. The casting numbers/letters on rear end housings may have either a prefix or suffix of "N" or "NF" and no reason has been found yet why they may have one or the other. May want to try the tag team or restoration corner forum. 625-, 8. Motive Gear OE 3. 2 10 bolt is great little rear end, I have a 1970 Chevy Nova that runs 11’s through the quarter with a 1:56 60′ time. 37 ring teeth divided by 10 pinion = 3. Axle Ratio: CCA: 3. 5 is by the ring gear bolts. Jul 11, 2008 · If you can find an unmolested rear there may be a tag on it with the ratio. However, I've been told that my 10 bolt posi, that the carrier might not be able to take a 3. 3969278NF = 70-72 GM A-body 12 bolt. The more gears you have, the smaller the difference in ratios will be between them (eg: on a 27 speed bike there would be 9 steps between one gear and another, while on a 3 speed bike there are only 3 steps between each gear). 5 and vice-versa. 31:1 ~ 12-bolt Positraction (L48/350-4 & LS3/402)* * Engine RPO code and size following the rear axle ratio are taken from build sheets or Find Ring and Pinion Gears GM 10. 25" OD) Part Number: YGA-12628 Not Yet Reviewed Oct 19, 2017 · I had a 66 Suburban with the 3. 50ish gear with the close ratio in first gear. 73 - up (larger numerically) In conclusion, the GM 14 bolt rear end consists of several key components, including the pinion gear, ring gear, axles, differential assembly, and housing. Finding a 3. See chart below for carrier/case breaks by differential model. A 12 bolt could accommodate from anywhere from a 2. diameter, 10-bolt ring gear differentials with 30-spline rear axles; Specifications: fits 2. Granted, 10 bolt parts will probably be somewhat different in prices. 2-inch 10-bolt rearend from a 1971 Monte Carlo using upgraded parts including axles, ring and pinion gears, and a positraction differential. 73 cannot be used on a Type-2 carrier. 41 GU2 Rear Axle 2. so long as the trans is not an overdrive the final gear is 1:1 so it really deosn;t matter what kind of trans you have. 10 rear gear with an Eaton posi. pinion shaft, 28 spline axles. 5-inch differentials. Sitting 2. 73 ratios. 73: GW6: Axle Rear Gear ratio changes are possible as long as the ratio selected is within the range of ratios available for the carrier. Oct 26, 2021 · JEGS 555-62808 Posi Traction Differential Features: Fits GM 8. If you want to upgrade the rear differential in a customer’s GM GM RPO Codes: RPO Code: Description: Ratio: F16: Transaxle Final Drive: 2. Apr 11, 2017 · Every square ive had that wasnt a 4wd after 81 had 3. Sep 18, 2019 · The GM 10-bolt 8. 55, & 3. It is actually much more like the 8. Jul 10, 2013 · The 10 Bolt rear end with an 8. 5" diameter ring gear and pinion with a 3rd bearing at its nose that prevents gear deflection under severe loads. 0 out of 5 stars ( 1 ) Nitro Gear & Axle (93) USA Standard Gear (79) Axle Location. These differ based on the gear ratio. 55 on the 12 bolt too and the 3. 5" Chevy 10-Bolt Rearend TrueTrac - 28 Spline, Gear, Bearing Kit Package - 3. 5" 10 Bolt axle, also known as the GM 8. 56 ratio GU2-2. 25-inch oval. For the 1972-75 Camaro style model 8. 5” 10-bolt rears have two squared-off ears at the 4 and 6-o’clock on the bottom of the pumpkin, that is the #1 tell-tale sign, if you don’t have those, you don’t have an 8. Ring and Pinion Gears, 3. Aug 5, 2020 · 79 cab and chassis currently with stock 350. Quite lengthy but it lists the "standard" gear ratio for all of the power team configurations. 73 gears. 23 GU6 Rear Axle 3. GM 10-Bolt ring and pinions are manufactured with the same gear cutting processes as the OE brands, utilizing a Face Hobbed or 2-Cut gear cutting style followed by lapping. Sep 11, 2013 · If this 10 bolt rear is original to the '65 Chevelle or Malibu that it was pulled from, it will be a c-clip axle 10 bolt Chevy 8. East Coast Gear Supply offers wholesale discount prices on GM 10 Bolt 8. 08 Ratio Rear Ring & Pinion GearInstall Kit 2. The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. 2 ring gear. In the early days, the ring gear size was 8. 6 axles use the same ring and pinion gears so that means a ring and pinion set from a present-day GM 10 Bolt 8. 3. 10-bolt Ratio Jun 18, 2018 · GM did produce another rear differential known as the 10-bolt through the ’70s, ’80s and ’90s but it was not as tough as the 12-bolt. 14 ratio GH2-2. 41 ratio GM8-2. 5 : 1) I have no idea what this rear is out of originally. Cover bolts: 10; Ring gear bolts: 10; Ring gear diameter: 8. An engine that produces 345 ft-lbs certainly has respectable torque, but it is simply not enough to get a 4,000-pound vehicle moving. 5" rear is currently 4. The tire sizes are 295/45/20 (30. ei, 3 and a bit will be 308, 3 just shy of a half will be 342. $1,932. The 12-bolt came in many different stock ratios, and it is a great donor candidate for GM owners wanting a differential with a lower ratio (more economical to operate) or for owners looking for a… Feb 13, 2015 · The 8. You can count the ring teeth and divide by the pinion teeth for the ratio. Ring and Pinion, 3. 6 inch 10 BOLT rear end gears, carriers, axles, bearings, shims, seals, crush collars and more. Originally, gear ratios ranged from 2. 5" Chevy 10-Bolt Rearend Posi - 30 Spline, Gear, Bearing Kit Package - 3. 41:1 to 4. Dec 5, 2018 · The ratio has to be the same as the front differential I have 2 trucks that I went from 3. Example: CG1025B decodes to CG ~ 3. e. Maybe something between a 3. Runs well but am finishing up a 454 build that will in this fall. 10 Bolt Series 2 = 2. 56 and 2. Are these gears good for performance? I want to be able to get off pretty fast but also be able to drive on the highway. 73 rear but since it had factory ac it got the 3. If the car is not a posi, you will not get a true reading. Jun 9, 2010 · Then I found a 70's-era 12 bolt with a 3. 2-inch Apr 4, 2013 · I just purchased a 1969 camaro. While the GM 8. However, if you are looking for a strong differential that you can easily bolt under your Chevrolet, you can… Jan 22, 2020 · Does it have a 14 bolt rear axle? If not, do you want one? If your answer is yes, then a 14 bolt rear axle swap may be in your future. 2 10 bolts had the carrier split at 3. 56: GW4: Axle Rear: 3. This is not to be mistaken for the GM 8. Mar 12, 2021 · 10 bolt cover with 8. 56:1 Ratio, GM, 8. 65: F25: Transaxle Final The result is Chevy GM 12 Bolt TRUCK rear end ring and pinion gears that deliver performance standards set by DANA, one of the world's most trusted supplier of driveline parts. 6 will install into a 1980’s GM 10 Bolt 8. Rear (90) Front (25) OEM (19) 4. I run a stock open differential with a Richmond mini spool, Richmond 4:11 gears, and Moser street axles. 6 IRS for the 2010-2015 Camaro. Jul 24, 2013 · Buy GM Chevy 8. 5" GM 3. SVL Gears for the GM 12T Chevy 12 Bolt truck rear end are dependable enough to be backed by a six-month or 50,000 mile warranty. 73 - up (larger numerically) Feb 1, 2021 · I want to add a torque converter around the 2,000 - 2,400 range to compensate the cam, but would like to replace the rear 2. 625" 10-bolt? And, yes, that rear end uses 2. I have trailing arm/airbag rear suspension so getting the 10 bolt to mount up will be a May 22, 2013 · Buy GM Chevy 8. The 12 bolt I've got had 2. That is the great caveat; there are four sizes of 10-bolt GM rear ends: 7. 73 or 3. For decades, Chevy and GMC trucks, vans and SUVs came equipped with a 14-bolt axle. 6-inch. 55:1 ratio, April 17 1968, Buffalo plant. 5/8. 73 GM10-373 parts at JEGS. 6, 10 Bolt Cover, 30 Spline, 10 Ring Gear Bolts, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Set GM 8. 5" 10 Bolt Gear & Posi Package Description Package Includes: (1) Limited Slip Positraction Carrier (Choose Spline Count Above)(1) Ring and Pinion Gear Set (Choose Ratio Above)(1) Differential Master Install Kit - Our Rigid Axle Eaton style limited-slip positraction unit uses carbon fiber and steel friction plate technology for smooth and Panhard Rods, Track Rods & Rear Axle Housing Locater Rods; Richmond Gear GM 12 Bolt Ring & Pinion Gear Set Ratio: 4. 93 GU4 Rear Axle 3. Yukon 1541H alloy rear May 4, 2010 · So I'm pretty sure it has a really low gear. 5" axle features an 8. Oct 1, 2011 · The 8. . 73 ring & pinion. It can be a bit overwhelming if you've never Motive Gear OE 4. I had a 66 C10 Suburban with the original 3. 91 GV0 Rear Axle 3. CY 0824B for 3. 73 gear ratio for my 70 Chevelle SS clone project. It meshes with the ring gear and transfers power from the driveshaft to the differential. 5 10 bolt in my OT Camaro behind a 427, with Dutchman axles, C clip elimnator Oct 5, 2022 · The 10-bolt differential cover is located on the rear of the axle and is an 11-inch x 10. 07 ratio. 2-inch 10-bolt that saw use under certain Buicks,… This video goes through the GM 10-bolt axle overhaul. 73 I have a TH350 (stock) tranny and the axle is the stock 10 bolt. Dec 1, 2008 · Follow along as we show you how to rebuild a Chevy 8. Oct 30, 2006 · If you change the close ratio transmission to a wide ratio with those 3. 08/wide combination would feel the same as the 3. Each Dana 60 has a build date and bill of materials numbers stamped into the back of the passenger-side axle tube. They feature a massive 10. 2-inch 10- and 12-bolt axles, while the other divisions used various other axle designs, including one 8. Traditional BOM’s are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. 5s and 7. Thanks for watchi Gear ratio changes are possible as long as the ratio selected is within the range of ratios available for the carrier. 6 in. 5 10 bolt was the standard rear in the Buick Grand National , turbo T-types, ’84 Hurst Olds, and the 442’s of the 80’s. Casting Numbers: 12-Bolt Casting #3859140N 10-Bolt Casting #3859139N 10-Bolt Casting #3863495N * Wouldn't those 90s cars have the 7. They also sell a Do you have a whole bunch of power under your hood? Are you only spinning one wheel on those burnouts? Hagerty's Davin Reckow is here to help you solve all y Mar 31, 2015 · All 8. 76 * 3. I sure somebody can help decode it. 5˝ or 8. The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear to provide you with a “[result] to 1” ratio. To the best of my recollection these are the parts I purchased, and the labor to have it installed: Oct 17, 2009 · Graham, the '71 Olds 12 bolt might be thee "O" axle, which is not a Chevy 12 bolt. 30's along with a TrueTrac for the UglyTruck. 73 or numerically higher gear ratio; Fully rebuildable and assembled with state-of-the-art technology and real-world testing for superior control on the road It wasn't until late 1972 that the 10 bolt 8. Find 1967 CHEVROLET CHEVELLE Differential & Rear-End Components and get Free Shipping on Orders Over $109 at Summit Racing! Ring and Pinion Gears, 3. 2 or early Buick 8. etc. I've also got a 8. A numerically larger ring gear will physically bolt to the differential, but you will not be able to get the pinion-and-ring gear to properly mesh. 10 gears and am tempted to change to a higher ratio. 5” 10 bolt rear end units had 28-spline axles, which are thinner than and not as strong as the upgraded 30-spline axles. 625" diameter ring gear, almost everything within the axles Sep 23, 2018 · There has been much written about the Ford 9-inch banjo-type rear axle, some of it right here in past “Swap Meet” articles. Find CHEVROLET K5 BLAZER Differential & Rear-End Components and get Free Shipping on Orders Over $109 at Summit Racing! 30-Spline, 3. So when I can save up some money and get a 3 series posi carrier and 3. 5 rear end has 7/16" ring gear bolts with 3/4" head and are left-hand threads. 10 bolt street gears are designed to withstand the rigors of everyday driving, as well as a weekend at the track. 5? or even the 3. 2-inch and 8. 31:1 ratio, May 22, 1968, Buffalo Oct 20, 2011 · Jump to: Driveshaft | decoding | ring gear identification | Speedo-gears Camaro Rear Axle Information The 1970 rear end differs from the 1971-1981 rear end. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $25 off $249 / $55 off $499 / $110 off $999* - Use Promo Code: SUMMER Motive Gear Performance Gear Set, 3-Series Carrier, GM 8. GM 8. 12-bolt Oldsmobile Feb 11, 2013 · 1966 chevy c10 rear-end. Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. 5 in. Due to the simplistic design, it is much stronger and lighter than any differential. 4375-inch left-hand thread on all 8. So I put in this one. Part Number: RMG-4900391 4. In 1971, GM instituted a standardized "corporate" rear axle. 6 inches; Ring gear bolt thread: 7/16 - 20; Pinion splines: 30; Pinion nut socket size: inch; Carrier breaks: 2. CF 0825B for Positraction 3. 17:1 gear on three different carriers. 5" gears, ring and pinions, ring and pinion gear sets, master install kits, pinion kits, mini install kits, axles, ujoints, bearings, air lockers, lockers, triple drilled flange, diff housings, solid spacers, flanges and other GM 10 Bolt 8. 73 Ratio: Differential Assembly Kits - Amazon. You will need to know that there are different series’ of differentials (series two and three). These gear sets are also more prone to some gear whine due to the aggressive cut of the gears. 73. 56 now. 08, 3. Jan 16, 2013 · Parts for the 10 bolt are more interchangable as well as cheaper and easier to find, especially in a posi application. 73:1 Ratio, GM, 12-Bolt Passenger Car, 3 Series, Set. Understanding the function and interplay of these components is essential for maintaining and upgrading the rear end to meet the specific needs and demands of off-road or heavy-duty Axle Ratio Code Stamps. These have the BIGGER 30 Spline Axles and not the 28 Splines axles. That's with Nov 19, 2014 · Non posi 10 bolt rear. Swapping out the entire differential is not that much of a hassle, and most of the trucks I have seen, including mine, have been swapped at some point. 5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. 23 - 3. 42 Yukon gears from Randy's Ring and Pinion. It has a 454 crate engine in it. 5-inch differentials—like the larger, heavy-duty 12-bolt—were designed where the axleshafts are secured with C-clips inside the differential. 07 gears. The gear ratio for a GM 10 bolt is 10,41. Axle codes and a good look at the inside have verified that this is a 2:56 posi unit with a 2-series carrier. 5 and the 8. 25: GW2: Axle Rear: 2. 875″ axle) for a 14 bolt, talk about the pros and cons, and share some helpful resources. 5" 10 Bolt Master Bearing / Install Kit; Optional Upgrade to Solid Pinion Spacer; All Parts Include 1 Year Manufacturers Warranty Jan 26, 2010 · Your car probably had a 370 rear end in it from the factory. 76 1st gear and you have a 2. 08:1 ~ 10-bolt (L14/307 & L22/250)* Chevrolet Gear & Axle: W: * Engine RPO code and size following the rear axle ratio are taken from build Ring and Pinion Gears,Yukon Gear & Axle 8. If you’re wondering what kind of 14-bolt axle you have – and you’re working with a 14-bolt axle from the year 2000 or older – this guide is for you. 5in 10 bolt axle 12-Bolt Casting #3875745N 10-Bolt Casting #3875744N. 2 10 bolt. 70:1 (10-bolt) or 3. The 3. The pinion gear is a small gear that is connected to the driveshaft. The 10 Bolt spool fits the GM 10 Bolt Rear End A drag racing spool will always turn both axles at the same speed with an equal amount of force. If it is an early 8. 55 open 12-bolt (close ratio 4 speed) FJ - 3. 5" 10-bolt Rear End, 4. 5 inches, but the It's time to ditch the stock 3. 5-inch 10-bolt casting numbers we’ve found a 410409N and a 410408N. Part Nov 19, 2022 · Fwiw I broke my spider gears in my stock rear end 2. 55 May 31, 2023 · What Chevy Models Fit A 10-Bolt Rear End? Many chevy models fit a 10-bolt rear end, including the camaro, nova, chevelle, and impala. 73 ratio GU4-3. It can be adapted to fit under just about any muscle or classic car. Or I could look for an 8. 42, and 3. 56:1 to a 6. Can I Replace A Chevy Rear End With A Different One? Nitro Gear & Axle (15) Richmond Gear (8) Axle Location. 2" Chevy 10-Bolt Rearend Posi, Gear, Bearing Kit Package - 3. 5" 10-bolt 1973 type rear. 73 Gear Ratios, GM, 12-Bolt Dec 2, 2012 · I've put together a list of stock chevy 10 bolt rear ends that will fit the tri five's. 5" 10 Bolt Eaton Style Clutch Posi Unit; GM 8. The best gear ratio for a GM 10 bolt is 10,41 because it is the only ratio that allows your engine to turn 10,41 times per minute. 41 to 4. Both are 2x4. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. 84: F18: Transaxle Final Drive: 2. 2˝ ring gear that could only take about 400 horsepower. (1. SB350 TH400 14 bolt Ring Gear Torque = input torque x axle ratio. , 10-Bolt, 3 Series, Set. 83 GV3 Rear Axle 3. Part Number: YGA-10626 Not Yet Reviewed The standard rear axle ratio with overdrive was 3. Nov 3, 2014 · Get the Best Performance with Motive Gear Ring & Pinion Gears Ratio: 3. Nov 19, 2013 · Rear Axle Ratio Charts For 1967 - 1972 GM Trucks The 1967 11 were stamped into the edge of the ring gear it would be a 3. At this point, it needs a paint job and interior. 55:1 Ratio, GM, 8. 5" rear axle in the bagged c-10. Ring Gear Speed = input speed ÷ axle ratio. 08s would be like having a 3. 42 Gear Set, 3-Series Carrier, GM 8. 2" GM, 3. 2-, 8. 875" 12-bolt?) but if in your application one (an 8. Up until 1988, all GM 8. GM did make another 10-bolt axle for earlier cars that has a similar size and shape cover, but this axle has only an 8. The main tricks given in the video are about 10-Bolt Casting #3894938N * (Note: For what it's worth, ALL 67 rear ends I've ever seen were the narrow variety and used the spring cup like 68-72 but were narrower like the 64-66. com FREE DELIVERY possible on eligible purchases Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. 90 GU9 Rear Axle 3. 53: F17: Transaxle Final Drive: 2. Sometimes referred to as the GM 10-bolt. 5" 10-bolt Rear End, 3. At the time I had a th350 behind the 454. Conclusion. 5 inch differential on Motive Gear Performance Ring & Pinion Set, GM 7. I'm thinking that the 4. Aug 19, 2018 · I recently had my 12-bolt changed from an open rear end to a posi rear end. Showing how to rebuild one yourself using some great Yukon Gear & Axle components. Jun 12, 2011 · Pulling the cover is the guaranteed way to find out what you have. The GM 10. Imagine you dropped in a set of 3. 76 - 3. Rear Axle (GT8) 4. 5 ring gear. The ring gear on the Chevy 12-bolt measures in at 8. 73 GV2 Rear Axle 5. 5 10 bolt inside, but none of the 8. 36 Positraction, 1025 ~ Month [Oct] and Day [25], B ~ Buffalo (G=Chevrolet Gear & Axle, W=Warren, K=McKinnon Industries). One way to tell the 8. Richmond Gear 69-0350-1 Part Number: 836 Ring and Pinion Gears,Yukon Gear & Axle 8. I'm not sure about the applications (i. The 10,41 gear ratio is also great for off-road activities and provides plenty of torque needed to travel at high speeds. Dec 24, 2020 · Before GM consolidated its rear-axle production into what became known as “corporate” axles around 1971, each division placed its own versions underneath the passenger cars it produced. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3. 73) == 6. They are from 1955 throught 1964. Its also a factory ac car. 5 Inch|GM 8. 23, 3. 73 - up (larger numerically) Best Gear Ratio For Your GM 10 Bolt. 73 Gear Ratios, GM, 12-Bolt What do gear ratios tell us? gear ratio: The number of rotations of the crank arms per revolution of the rear wheel. Both 8. 5s look remarkably similar, so you’ll need a measuring tape to confirm. Make sure you get the right gears! or a new differential carrier or complete differential to match the gears. 73) == 4. 10 Bolt Spool – 10 Bolt Spool A spool is one solid part that replaces all components of a differential. The identification code should be stamped on the bottom or font of right axle tube either adjacent to the carrier housing or about 8" - 10" inboard Differential Ring and Pinion (10 Bolt) Manufactured by Richmond Gear : Warranty Period: 2 Years or 100,000 Miles: Part #: 69-0322-1 : Ring Gear Material: 8620 Steel: Differential Carrier Break: 3. 7, 3. 56:1 for the 'corporate' 10 bolt rear end on two different carriers. A full range of pinion gears is offered for the Chevy 10- and 12-bolt axle assemblies so you are able to select the correct gear set for your vehicle, application, and setup. The hint that the axles were changed would be the rear disc brakes and fat sway bar. 90 Gear Ratio, 3-Series fits the following vehicle(s): 1998 Chevrolet Camaro 1999 Chevrolet Camaro 2000 Chevrolet Camaro 2001 Chevrolet Camaro 2002 Chevrolet Camaro 1998 Pontiac Firebird 1999 Pontiac Firebird 2000 Pontiac Firebird 2001 Pontiac Firebird 8. 08. 73:1 (12-bolt) if the car is a station wagon. The Chevy 8. Looks like there is a cutoff between 2. 99 (1) Ships Today ATK Engines Remanufactured Rear Axle Assembly for 2002-2005 Chevy/GMC/Buick/Olds SUV. 73:1 Ratio, GM 8. 42 GU7 Rear Axle 2. Jul 2, 1998 · For information about how to change the gears in your rear axle, G = Detroit Gear & Axle K = GM of Canada 3. 73 ratio G80-limited slip differential G87-8. 5″ GM 10 bolt- stock specs: 8. Exclusive 9" Gear Ratios. These are basically the same internally 2WD or 4WDEven the 10 Bolt front ends are the same "Guts"! The BEST ones are the '89 to '91 Blazer & Suburban ones or '88 and newer Pick-up trucks. Jan 5, 2004 · Was reading the 1970 restoration booklet on rear gears. Part Gear ratio changes are possible as long as the ratio selected is within the range of ratios available for the carrier. The 8. Apr 13, 2018 · Because of the thickness of the flange where the ring gear mounts, gear ratios numerically higher than 2. 42 Gear Ratio (GU6) 8. An important thing to note is that the ring gear bolts are . 73 gear with something different first. 625″ dia. 5/7. 10-bolts have 8, while 12-bolts have 12. 73:1 Ratio The GM 8. 23 ratio GT4-3. Sep 19, 2016 · A few other advantages the Ford 9" has is that, well, it is larger than the Chevy 12-bolt. Jan 8, 2013 · Buy GM 8. I do have photos of a June 1967 cast #3917124 rear end but the assembly date is October - obviously for a 1968 model year Chevelle. 55 Ratio: Differential Assembly Kits - Amazon. 73 GU3 Rear Axle 2. For example, a stock LS1 engine sends 345 ft-lbs of torque to a rear differential with 3. CF 0522B for Positraction 3. 73 8. 2 in. 07 gears and differential (the diff housing has a different offset) in the Suburban, and it worked out nice. 73 gears, I found a 1970s Chevy Van 12 bolt rear end, that had 3. 42 Ratio: Differential Rings & Pinions - Amazon. 5. The low ratio carrier accepted 3. But as stated you will need to axle code 2-3 letter suffix code or you can open the rear and check the pinion head it will also have the ratio stamped into it by listing the ring tooth count and the pinion tooth count and part number of the pinion gear plus the date usually. 10. 70 ratio. 5" performance parts and accessories for your GM 10 Bolt 8. 73 models weren't know to have performance gears, they Nov 6, 2002 · Just wondering how to quickly determine the ratio of an open diff. Going through the GM 8. 56: West Coast Differentials Tech Support / Order Hotline: (800)510-0950: Call to Order before 4PM PST and most Parts Ship Out TODAY! Find Replacement Axle Parts for your GM Vehicle in our Application Guides: GW3: Axle Rear: 2. 73:1 gears at 4,400 rpm. Guess I could pull the cover and count teeth! Thanks, Nov 8, 2010 · That's not the axle code ,it's the casting number from the housing. It came with a 3. What Is The Difference Between A Chevy 10-Bolt And 12-Bolt Rear End? The main difference is the number of ring gear bolts. Mar 13, 2018 · The 8. The pinion gear also has a gear ratio that determines the overall gear ratio of the rear end. Example; the original rear pinion gear on my k10 exploded, and it was cheaper to buy a parts truck with a good axle than to Oct 8, 2018 · Sure, you know what’s in there and what it does but are you willing to tear into it and rebuild the differential? Recently a friend enlisted me to help rebuild his 7. GM 10 bolt rear? The jacking up and turning the wheel or driveshaft seems to produce unuasual results. 76 * 2. See bottom of page for more examples. 73, 3. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. 10:1 Ratio, GM, 10. 5” GM 10 bolt. 875 inches in diameter, compared to the Ford's 9 inch diameter ring. It is nothing like the Chevy 12 bolt. A wide ratio and 3. In this article we’ll share some info about swapping out your 10 bolt rear axle or 12 bolt rear axle (aka GM 8. 10 Gear Ratio use a softer material that is better suited for higher torque applications, but the softer material does wear quicker. They are very quiet, even though it was the first R+P swap I ever did on my own. 1958-1970 Chevy Rear Differential code Identification. First I will list the ratio, then the numbers on the ring gear and pinion. Beware there might be different differential carriers for different ratios, because of the different pinion gear diameters. The rear axle identification code consists of at least a two letter prefix indicating the gear ratio, a letter for the GM Division, and three digits indicating the day of the year from January 1. Check the code on the axle tube and post it. Ring gear has 10 bolts and pinion has 30 spline. 90 I would say with a glide you have 2. 2" 10-bolt or 8. 80 overall 1st gear. Aug 12, 2013 · way more bang for around the same buck as a rear end swap. 73 ratio). 5" 10 Bolt; View Details. Chevrolet used its own 8. 2-inch 10-bolt Camaro housing, the casting number will be 3894859NF. 73 gears, so now you have (1. 08 rear ratio. 56 - down (smaller numerically) Series 3 = 2. 31: GW5: Axle Rear: 2. 42. Ive always sworn that it had a 3. 73 and want to lower the ratio to 3. 31:1 ratio, January 9, 1968, Buffalo plant. 55 or 3. It was custom built. 88 98 Chevy Truck Rear End Swap Apr 26, 2011 · Installation of carrier bearings, pinion bearings, ring and pinion and a crush sleeve are covered in this video. 70 factory gears (also old Zoom Yukon Gear & Axle (32) USA Standard Gear (31) Rear (152) Get Results; Cover Bolts. 42's in favor of some @NitroGear 4. (14-bolt) Differential Case Design Type, 4. Mar 25, 2016 · First, look at the casting number of the center section. 42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. 5") was used it could very well be a 3. 73 and up; Axles: C Clip Style Apr 25, 2010 · Here are some gear ratio RPO codes for looking in other vehicles for specific gear sets G72-2. Truck 12 Bolt Series 2 = 2. 73 rear. I'm running a ring gear spacer in a 10 bolt for my Austin with a 327, and it seems to be working just fine. 42, so the RPO code is useless. 5″ ring gear, 1. 10:1 and Numerically Lower Apr 26, 2015 · I have a 12-bolt posi rear end from a 1969 chevelle sedan. 5 10 bolt. I want to upgrade this to a 3. 08 My 82 350/350th 84 305/700r4 86's 350/350th This leads me to think that 3. 5 parts will interchange. com FREE DELIVERY possible on eligible purchases Aug 30, 2009 · ratio You forgot 3. GM Chevy 8. Basically the pontiac rear was the 10 bolt and was only used on 350 2bbl cars. The We would like to show you a description here but the site won’t allow us. 40 ratio stock 12 bolt to swap with the 12 bolt you have now might not be too hard and it's much easier to swap rear ends for a novice mechanic than to swap gears, IMO. I installed the 3. GM 10 Bolt 8. 77 GU8 Rear Axle 3. I think the logic was that normally this would have had the 2. This axle housing is the next step up the ladder in terms of strength and cost. If your Chevy’s rear-end interchange is Axle Rear: 2. In 1970 the rear end was built in both 10 and 12 bolt versions. com FREE DELIVERY possible on eligible purchases Axle Ratio: CF: 3. 5" 10 bolt is probably the strongest of the 10 bolt GM's and not much less than the 12 bolt. 08 instead. As far as I know there were no other optional rear axle ratios with the overdrive. You might be asking yourself what gear ratio is best for your GM 10 bolt. 5-, and 8. This code consists of 6 or 7 digits and characters indicating the stock gear ratio, month/day of assembly, and the assembly plant. Nov 6, 2013 · The rear axle is a C-clip design unit, meaning the axleshafts are retained using a metal C-clip in the middle of the differential. , 14-Bolt, Fits 4. 5" axle, commonly known as the GM "14 Bolt", is an extremely popular rear axle due to its strength, availability, and healthy aftermarket. The 3-speed/overdrive transmission was only available with the 6-cyl and 283 (base 195 horse and optional L77 220 horse) engines. 11:1 gears were common for the SS cars,might depend some on if the car was manual or auto,or maybe the had to be checked Sep 23, 2018 · The Dana 60 is a Salisbury-type rear-end, meaning the differential carrier removes from the rear of the axle instead of the front. 73 Gear Ratios Dec 1, 2015 · 10-Bolt Gears by the Numbers Gears are also “coded” with their teeth count; dividing the number of ring gear teeth by the number of the pinion gear teeth yields the ratio. Most GM vehicles with a 10-bolt rear differential were outfitted with a 7. 73 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI & AK 1563 AXLE BRGS (2. co/d/gqeXroX It's gone up over 100 bucks since then. It can be identified by its 10-bolt rear cover, which appears to be lying on its side. 73 to a 3. 5" 10-Bolt Ring & Pinion Gears - 3. Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3. I bought the 12 bolt rear out of a 70s van and swapped the 3. 08s you can have more of a hole shot and still have the top end. Let's play with math Your PGlide has a 1. 2" 10-bolt, provided it has at least a 3. Apr 11, 2016 · Pull the cover or roll the car on the ground and count the pinion revolutions. 45" tall) GM 8. Also, is the rearend strong enough to support the power? Ring and Pinion Gear, 2. 21. 6" axle uses a slightly larger 8. Jan 6, 2009 · Another question would be do you know a site where I could find out exactly from the code what rear end it is and the specs on it ( gear ratio) its a 12 bolt as well and also is the correct number just one letter and than 2 numbers? the numbers I found are(D26)(GM72)and(3896339 with the letter N underneath the numbers) Thanks again by all May 1, 2013 · While the 14-bolt can still be found under many late-model GM 2500HD gas trucks and Suburbans, most '01-and-newer ¾- and 1-ton diesel trucks use the AAM 1150 rear axle. Rear (323) Front (212) OEM (53) 4. 1 full revolution of the tire and count the revolutions of the pinion will tell you the ratio, while it's on the ground rolling straight. This shows some of the parts that will be discussed in this report. 08 ratio (and then put in a 3. Oct 2, 2014 · I would like better gears, but the idea of spacer rings doesn't sit well with me so I don't think I can modify the existing 10-bolt housing I have. With a 26" tall tire, you should be around 2200 RPM at 60mph. 10 GT7 Rear Axle 3. (like 1. Between 1973 and 2000, a few 14-bolt axle variations were produced. 5” 10-bolt. 25 inches below the ring gear centerline, the Ford 9" also benefits from a greater tooth contact patch. 2 rear end has 3/8" ring gear bolts with 9/16" head where the 8. 33 GT8 Rear Axle (GT5) 4. 73 - down (smaller numerically) Series 3 = 2. 08 ratio GU5-3. Removing the axle shafts requires unscrewing the eight retaining bolts at the drive hubs. 10 GU1 Rear Axle 2. 5″ or 8. 31:1 ratio, August 25, 1967, Buffalo plant. 73 gears and a factory GM posi unit. 2 from an 8. 23 Ratio and Higher: Pinion Spline Count: 27 Aug 7, 2007 · Note: Some late production '72 models switched to the 8. 5 10 Bolt / Ring & Pinion / Gear Set-8620 Heat Treated Material Premium Quality Gear Set 1 Year Manufacturers Warranty Yukon Gear & Axle: Yukon Gear May 7, 2020 · The GM 11. 5" Ring Gear. Mar 26, 2020 · The left diagram above is a rear axle cross section from a 1968 GM parts manual. KF 0417B for Positraction 3. 07:1 ratio, August 24, 1967, Buffalo plant. 6" axle or GM 10-Bolt, is available in many front and rear axle applications including both solid axle and IFS / IRS configurations. 55/close combination for the first two gear changes. 08 was super popular in 80's due to cafe regulations saying that a certain number of vehicles had to meet mpg rules. 6 is actually an 8. 73 and changed it to 3. 08 GU5 Rear Axle 3. qbykqr dgxlm uadvs notevmp sfzjb oiba tgno qwnpqwi cqehw bkftr
2.