pinion nut torque specs gm 10 bolt

The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. It is well known that altering the gear ratio of a vehicle, whether it be through changing the pinion or spur gear, can have a significant effect on performance. GENERAL MOTORS: APPLICATION: FT-LBS / ( N-m) AXLE SHAFT FLANGE BOLT 'S' BODY CAR: 27 (37) TRUCKS: 60 (82) AXLE SPINDLE NUT 'A' BODY: 192 (261) 'C' 'E' 'H' & 'K' BODIES : 180 (245) 'J' & 'L' BODIES . Crankshaft Pulley to Hub Bolts 37. It was in the 30-35 I "think" from GM. After that we removed the old bearings and cleaned all the parts up in the solvent tank. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. Additionally, vehicles with higher torque have better control over their handling due to stronger low-end acceleration which makes them safer on roads and highways. By Albert. With its strong construction and corrosion resistant coating, the PYN10 provides reliable performance for years to come, making it one of the best choices you can make when securing your vehicle's rear axle assembly. PINION NUT GM 7.5 8.5. New bearings 19 to 22 inch pounds. 9 Minutes Read / Before disassembly, we marked the bearing caps and kept the side bearing shims on the correct side. With the exception of truck differentials with 30-spline axles, andthosecarrying 2.41 and 2.73 gears (series two), the differentials will support all gear ratios without having to change carriers. It also has an inner diameter of 1 3/16", allowing it to accommodate most 30 spline yokes without any extra modifications or components needed. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. First I measured the old crush sleeve as a starting point. 3/8" T-bolt - 30 ft lbs. This versatility makes it a great choice for those who want to take their car from the street to the track without worrying about its durability. All rights reserved. The pinion on the left is part of a 4.11:1 gear set; the one on the right is a 3.08:1 pinion. Zach got enlisted by a friend to help rebuild the 7.5" factory 10 Bolt rear in the G-Body Monte that he is working on, so naturally it became a teaching moment. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. 2429 Mercantile Drive Suite A Therefore when dealing with these types of sleeves it's important to make sure they are installed correctly so as not to compromise its integrity or longevity. Not only was the 10-bolt assembly used in low performance applications, but it was also utilized in a variety of different vehicles ranging from Camaros, Chevelles and Impalas to even the earlier Chevy IIs. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Search Car Torque Specifications by Engine or Model Currie 60/70 : Torque . Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. Read More. It saved me time and effort trying to crush a brand new crush sleeve. Again, this would be okay in a daily driver or cruiser application, but if installed behind an engine with horsepower numbers climbing into the 400 range, you can plan on an eventual failure. The pinion nut should then be secured and tightened until there is no bearing play at all. High-Performance Differentials, Axles & Drivelines, How to Measure and ID Differetial Housings, Filling Trim Holes in Car Body: Sheet Metal Welding Tips, Q&A With Our Race Experts: Tuning and Maintenance Tips, Small Block and Big Block Chevy Engine Flexplate Guide, How to Adapt LS Engine to 700R4 or Turbo 350 Transmissions, Chevy C10 Driveshaft Length Measuring Guide, GM Steering Column Compatibility, Interchange & Repair Guide. Most 8.5-inch 10-bolt rearends have two extruded, cast-in lugs on the bottom of the differential housing at the 5:00 and 7:00 positions. These are two pinion gears for the 8.5-inch 10-bolt. The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonalprotrusion at the top. 35-Spline Pinion - 250 ft lbs. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. Sometimes, you need to push yourself. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. There are several differentials for the 10-bolt rearend. Both axles use a third member that contains the differential, which is made up of the . I will attempt to cover the necessary steps in building a differential for a GM 10 bolt rear end with an 8.5/8.6 ring gear. 7/16" x all lengths 60-65 ft lb. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. RING GEAR TORQUE FOOR LBS. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. If i missed any thing PLEASE tell me. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. If youre building a street car and want to improve performance, we all know the drill. As well as many other third member torque specs from Strange. The amount you tighten the nut (with or without the crush sleeve) is based on the amount of force measured in inch pounds it takes to rotate the pinion. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. If youre looking for a good.economical 10-bolt rearend to rebuild or install into your hot rod, you will need to be able to accurately identify thedifferent units so you dont accidentally come home with a 7.5 or 8.2-inch differential. The torque required to seat the nut is very large, possible 200 ft-lbs or more. The amount of backlash varies depending on the quality and cost of the gearhead; more expensive precision gearheads have nearly zero backlash, while an inexpensive model may have as much as one degree or more. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) These protrusions are larger than those on the 7.5 rearend. It also uses a 10 5/8-inch irregular-shaped cover. Follow along as Zach works over the old 10 bolt and brings it back to life. 5. put back together and tight pinion nut to specified torque. While a carrier-bearing girdle is available for the 8.2-inch rearend and does give some support to the housing it doesnt provide a reliable and suitably strong solution. Tighten bolt to 20 ft/lbs. Alternate Description. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! Instead of using a C-clip to hold the axle in the housing, these axle assemblies use bolt-in axles, much like an 8.2 BOP rearend. Im gonna go buy a good manual for shit like this. 1/2" T-bolts - 50 ft lbs. :yipi: Thats it?? With one nut per package and a 7/8-16 thread size, this pinion nut is made from strong steel and has a sleek black finish for a nice look. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. Good info on this site from what I've seen so far, kudos. After it has been properly crushed (by checking the rotating resistance of 19-22 inch pounds on the pinion) there should be at least 150 pounds torque on the pinion nut (or else you pull it apart get another crush sleeve and start over). This is in contrast to high-end torque, which describes how much power and force is produced by an engine at higher RPMs, such as 4000 or 6000. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. PINION PRELOAD NEW INCH LBS. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. Pinion nut torque (shimmed preload style): 250 ft*lb. I have seen street 12 bolts that . Peter - I'm retired but work part time as a pain in the ass. Nut secures driveshaft yoke to pinion gear. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. Constructed from high quality steel, the PYN10 features an integral washer design that ensures proper alignment of the bearing preload during installation and prevents damage to both the yoke and bearings. For that reason,many enthusiasts are considering the 10-bolt. While adjusting preload can provide some relief from overly-stiff or soft springs, ultimately you should replace the springs themselves if they dont provide the desired level of performance. Axle Images: Axle Details. The pinion diameter is 1.438 inches, and has 25 splines. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) The more torque produced, the less energy needed to move the car forward. The unique design and shape make installation easier while providing ample strength for off-road applications. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Crankshaft Pulley to Crankshaft bolt 77. You keep on tightening the pinion nut until you are within the in-lb. Mikz86TA. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. I reused the old crush sleeve and just added a thin shim out of the set to be able to get the pinion preload using the old crush sleeve. First introduced in 1970 as a corporate replacement for the older 8.2-inch 10-bolt or 12-bolt 8.875-inch axles, its popularity quickly spread to nearly every GM division aside from Cadillac throughout the 70s. Is a GM 10 bolt rear end good? This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. The "feel" people are way more experienced that you or I so the top one is re-commended. At West Coast Differentials we are committed to making your experience with us totally enjoyable. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. Zone 1.5 BL, 22x12s, California delete, Detroit TrueTrac, etc. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. Connecting Rod Cap Nuts 38. Mine was a pita. Ring gear bolt torque: 110 ft*lb. Bearing Cap Torque (Foot Lbs.) As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. The distance between the lower center bolt on the cover and either adjacent bolt is 3 3/4 inches. 4.replace seal. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. By continuing to use our website, you agree to our Privacy Policy. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. You can replace the pinion seal without changing the crush sleeve. Some guys even go to the trouble of making a set-up bearing so you dont have to press on and remove the pinion bearing to try different shims. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. It's essential that you use enough force while tightening down the pinion nut so that your component will stay securely attached; however, it's equally important not to over-torque the part, which could cause permanent damage or deformation. Bear Preload IN. The 8-inch Ford rear axle was used from the early 1960s to 1980 in small and mid-size passenger cars with six- and small-block V-8 engines. Order our high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $49.95 plus S&H, a $54.00 value. Generally speaking, these torque specifications will fall between 20-30 ft/lbs; however, for most applications ARB recommends a torque specification of right around 25 ft/lbs. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. The 8.5-inch is often referred to as the "GM corporate 10-bolt" because of its multiple uses, and the 8.5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. One will want to torque the pinion nut to 190- 240 ft lbs (Small Diff's) D60 and larger 225 -350 Ft lbs with the proper preload achieved. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . This website uses cookies or similar technologies to enhance your browsing experience. Received 16 Likes on 13 Posts. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. The ideal amount of torque required on a pinion nut when installing an axle depends on many factors, but typically you should aim for 110-125 ft/lbs of torque unless otherwise specified by step #6 during the installation process. if it is under twents hold the yoke with a pipe wrench and tighten just a little at at time till the torque wrench reads a constant 20 inch pounds for the revolutions. . We think top-notch customer service is the most important thing we do. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. This is especially true when it comes to cycling. To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. The 12-bolt is generally considered to be the stronger of the two rear axles. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. extended cab crew cab p 14 8 6 gm rear axle specifications 10 bolt cont, what are the torque specs on silverado rear diff cover you need rear axle pinion nut torque specs for a 98 chevy 12 ton pickup 2wd the nut is generally torqued to 260 300 ft lbs or 25 inch, proper torque specs for 2002 chevy silverado 1500 44 hub assembly to steering . GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. Mgrotel, nice cliff notes. Alternatively, shims can also be used to adjust the pinion depth. The PYN10 - 10-Bolt 8.5" Pinion Nut is perfect for 30 spline pinions, providing a dependable and secure connection between the driveshaft and differential ring gear. The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. You can use this instead of the crush sleeve. CRAWLPEDIA Off-Road Encyclopedia. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) When it comes to suspension, preload is an important factor. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. Now that the hard part is done you can re install the carrier with the shims in place, torque the bearing caps and run one more contact pattern to make sure everything is good to go. Therefore, when building a performance car or truck that will be subjected to higher than normal stresses and torque loads, such as those produced by high horse power engines or increased traction created by sticky drag racing tires, it may be beneficial to choose a 12-bolt instead of a 10-bolt axle assembly in order to ensure maximum strength and reliability. Additionally, its unique thread pattern provides torque retention while eliminating any possibility of loosening or vibrating off over time due to vibration or shock loads. . Here are the thin shims from the Summit crush sleeve eliminator. If it checks out you can put your axles back in, C clips on, cross pin and bolt and you are ready to put the cover on and fill it with rear end lube! Some of the most popular GM vehicles have come with 10-bolt rear ends. If in doubt, consult our staff of differential parts specialists. I don't use it on the bearing cap bolts. Not sure the torque specs on the carrier bearing caps, we red lock-tight them and hit them with the impact pretty hard at work. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. We are available to help Monday thru Friday from 8 AM to 5 PM Pacific Standard Time, and most orders placed by 4 PM ship out the SAME DAY! Then use lock-tight on the threads and tighten the nut back to where it was. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. This is also likely to reduce run times due to lower temperatures as theres less load being put on your vehicles engine when compared to running with a bigger pinion and smaller spur gear combination. These are considered highway gears that are good for top speed, not for off-the-line performance. The engine roars and the tires dig into the pavement as they work to move your car forward, pushing you back into your seat with tremendous force. SPEC Clutches: For That Next Engine Swap Or OEM, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop, Moroso Anti-Roll Kit Is The Right Tool For The, Steer Your Classic Ride Straight With A New CPP Steering, NEW LS Bellhousing For Magnum And T56-Shifted Hot, Fenix Is A Next-Gen 69 Camaro With 1,180, A Brothers Quarrel Results In This Fine 1955 Chevy, Is This Barn Find The Worlds First Corvette? Not only does a torque vectoring differential perform the same basic tasks as a regular differential, but it also has an extra element that sets it apart: its ability to transfer torque between the left and right wheels independently. does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . Now that we know our pinion depth shim is correct we can do the final assembly. The date and location of manufacture coding changed in 1971. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. How do you fix a loose pinion bearing preload? Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. The pinion bearing preload is an important component of the drivetrain system, as it works to ensure that the pinion gear's tapered bearings are running smoothly and efficiently. Try our Differential Gear Calculator. . Oct 20, 2011. Our LS swap adapter kits make it easy! The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. for new bearings. (Note: The 7.5 GM rear used different pinion bearings in 1979-80 vs. the 81-up axles, so you want to make sure that the old bearings match up to your new pinion bearings). We look forward to serving you! This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. The 8.5-inch and 8.6-inch 10-bolt rears are stout and effective differentials that can handle more power than either the 7.5 or 8.2-inch rears. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. lbs. Copyright 2023 Sierra Gear & Axle - Web Design by Zenxeon Technologies, Backlash for Aftermarket gears .006 -.012, Instructions Differential Installation & Setup, Differential Setup & Torque Specifications, GM RPO Codes Axle & Ratio Identification, Measurement Axle Shaft Length & Bolt Circle. Locate a Sierra Gear & Axle Distributor near you. Unfortunately, once the tension on this type of sleeve has been released during installation it cannot be re-used since it will no longer hold the proper tension. Setup Specifications. Backlash arises when two gear teeth mesh together in order to transmit power from one shaft to another; the teeth need some play to avoid jamming and ensure smooth operation. 2 ways. With careful consideration, selecting an appropriate option for your driving style can make a world of difference when it comes to performance and efficiency behind the wheel. Order before 4PM and most parts ship out the SAME DAY. Check the pinion preload by rotating the pinion with a torque wrench. JavaScript is disabled. If it takes more than 25 in lbs to turn the pinion, then you have tightened it too much and you need to back the nut off. The easiest way to tell the difference is by looking at the brakes. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. Some builders . The pinion nut is a 32mm or 1 1/4" so you need a socket and adapters for that. Next, attach the pinion nut onto the end of the shaft and use a torque wrench to tighten it to between 110-125 ft/lbs of torque. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. Carrier Cap Bolts. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. Some pinion nuts require a special procedure to be properly installed. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. Axle Type Cover Bolts FT. LBS. Doing a gear ratio change but not sure what you want? I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. Not sure what to do here but I know I'm looking at a boat load of parts I do not have the money for right now so not sure what the hell I'm going to do. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . BACK LASH 0.000". You can rest assured knowing that your axle is secured with this high quality product. For a better experience, please enable JavaScript in your browser before proceeding. Our Mopar flexplate buyers guide will help. The large flanges are easy to grip and make installation or removal easier than ever before, allowing you to easily tighten or loosen the nut without fear of it slipping away. This is very important, because if you go too far the crush sleeve will be ruined. I thought the pinion nut would be more like 50-75 FOOT pounds? Speedway also offers the . Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. Finding a 12-bolt that is affordable, is getting to be anearly impossible endeavor. 2023 Power Automedia. I have a 1993 Suburban K1500. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. It also uses a 10 5/8-inch irregular-shaped cover. Use oil on the pinion nut washer surface during all assemblies . Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide.