pinion nut torque specs gm 10 bolt
Known alternatively as the GM 8.875-inch (referring to its ring gear diameter), Chevrolet's 12-bolt rear end is one of the most celebrated in the American hot-rodding scene. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. 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. Currie 60/70 : Torque . We think top-notch customer service is the most important thing we do. The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! . 440-500 lbs ft and I wouldn't tackle it bring it somewhere where they know what they are doing..I have a four foot torque wrench that goes to 500 but thats one hell of a grunt and you have to hold the flange while doing this. The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. 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 . I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. Preload plays an important role in many machine designs for its ability to reduce wear and tear on critical components while improving efficiency and accuracy. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Nov 18, 2016. http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. 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 PYN10 is a 30 spline pinion nut designed for this purpose, and it is specifically made to be used with vehicles that have a 30 spline pinion in their 10-bolt 8.5" rear end assembly. 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. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. 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. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. Vendor Part Number. Setup Specifications. The Series 3 carriers are good for use with 2.73 and lower gears (numerically higher), so 3.08 and 3.73 gears work well. Mine is leaking. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. Is that really all it takes? Furthermore, this action reflects positively on the company's overall commitment to providing reliable transportation services while ensuring its customers' safety remains paramount at all times. Chevy Hardcore NEWSLETTER - SIGN UP FREE! You can replace the pinion seal without changing the crush sleeve. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. Follow along as we show how to measure and install a C10 one piece driveshaft. GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. 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. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. OEM bolts have thread locker on the threads. It's got a 350 with a 10-bolt rear end. I have a 2001 2500 HD. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Replace original worn or damaged nuts each time a gear set is changed. All rights reserved. You tighten it until the bearing preload is correct. on old bearings. Edit: Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 It was in the 30-35 I "think" from GM. Reply Quote. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. Back off left-side adjusting nut approximately 2 slots. Well show you what to look for in this buyers guide. Original gear ratios in pickups can range from 2.41:1 all the way up to 4.10:1, offering a wide variety of options depending on your needs and preferences. It is robust enough to withstand any punishment inflicted on it by racetrack use. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. 1/2" x all lengths 100-110 ft lb. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. I have a 1993 Suburban K1500. The 10-bolt GM rear end has been used in many different applications since its introduction in 1968 and continues to be highly regarded as one of the toughest axles available today due to its proven durability and versatility over decades of use in a variety of situations requiring extreme performance requirements from street racing too off roading adventures. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. The easiest way to identify the 8.2-inch rearend at a glance is by the shape of the housing and the spacing between the lower bolts on the cover. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . ft. 8-11 in/lbs for broken in bearings is acceptable. Lifted78Chevy. Upon initial . Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. MOPAR: 8.75" x 1.75" pinion: .090. . Here are the thin shims from the Summit crush sleeve eliminator. The purpose of preloading a bearing is to eliminate any existing clearance that has been designed into standard ball bearings by utilizing tension or compression loads applied directly onto each component within the assembly. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Doing a gear ratio change but not sure what you want? How tight should a pinion nut be? 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 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. Mikz86TA. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Step 1: To seat, torque nut to 50 (lb-ft) while . Maintaining your car's paint finish is essential to keep it looking great. ALL72156. 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. New bearings 19 to 22 inch pounds. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. I agree that the preload needs to be about 30 inch pounds. The following table contains the proper specifications for all popular axles. 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. 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. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! This axle was found in various vehicles from Chevrolets and Pontiacs to Oldsmobiles and Buicks with some of these models continuing production well into the early 80's. This will ensure that your backlash is correct without having to swap the shims. Increasing the size of the pinion or decreasing the size of spur gear will result in increased top speed for your vehicle; however this will come at cost to acceleration and increase temperatures from increased load. As well as many other third member torque specs from Strange. It has been proven to be reliable in high-performance and high-horsepower applications, but it can also handle occasional abuse from use on the racetrack. The rear end is full of it. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. 7/16" x all lengths 60-65 ft lb. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. It was used in different models by all GM divisions with the exception of Cadillac. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Cover Bolts: 25 ft lbs. Axle Images: Axle Details. For that reason,many enthusiasts are considering the 10-bolt. The only torque you should be concerned with is the torque it takes to rotate the pinion gear alone, 8-14 inch pounds for old bearings, 16-29 in/lbs. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. Skip to main content. Some of the most popular GM vehicles have come with 10-bolt rear ends. 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. Camshaft thrust Plate bolts 106 in-lbs. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. Im gonna go buy a good manual for shit like this. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. Choosing a higher ratio will provide more power and torque for pulling heavier loads or navigating steep grades with ease, while lower gears are better suited for those tackling long stretches of open highway or cruising around town at slower speeds. It is important to follow the instructions that came with your differential cover, as torque specifications can vary drastically depending on the material and grade of fastener used as well as the material of the diff cover itself. On the other hand, if the preload is set too loose it can cause a whining noise to originate from within the rear end as well as abnormal gear wear due to excessive movement between the two components - eventually leading to failure. By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. Torque Specs on Dana 60. Alternate Description. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. We show you how to keep that old GM transmission when swapping in an LS engine. ring gear bolts torque at 175lb/ft, bearing cap bolts torque at 200lb/ft, and the ring gear backlash should be between .006-.010 for aftermarket gears, .005-.007 for OEM gears. Many times when you are rebuilding an existing rear end you want to save the original pinion bearing shim and re use it under the new bearing. RING GEAR TORQUE FOOR LBS. This is especially true when it comes to cycling. Call 800.979.0122, 7am-10pm, everyday. The specified preload needs to be obtained by carefully crushing the spacer with just enough force from turning the pinion nut in order for it not to be too loose or too tight, as either one can cause serious damage if done incorrectly. Is a GM 10 Bolt rear end good? I was able to pull the old crush sleeve from the pinion gear shaft without damaging it, so I just reused it and added a 0.51mm shim to it. 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. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. This distance must be precise; if it is too small, the gears will bind together and cause mechanical stress which can lead to premature wear or failure. It also has an inner diameter of 1 . Here is my related question at almost 1 a.m. and torn down in driveway need to get to work: There was quite a chance that you have crushed the sleeve beyond the preload spec to make it hard to turn. Find the torque thats on it before hand and tighten it down to that afterwards. 5. put back together and tight pinion nut to specified torque. This heavy-duty nut is made with high quality materials and manufactured to exacting standards, ensuring it stands up to whatever you throw at it. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. This method works every time is done precisely as described. The Fora platform includes forum software by XenForo. This process must be done carefully, gradually increasing the tightness of the nut in increments until it reaches the desired torque level required to rotate the pinion correctly. 2 ways. you have it pretty much. The distinction between these two types of torque can be useful for assessing how well a car will perform in different situations: cars with higher levels of low-end torque are typically better suited for starting from standstill or accelerating quickly; whereas cars with greater amounts of high-end torque are likely more suitable for reaching faster top speeds over long distances. There is no way to happiness.happiness is the way. . GM 10.5" 14 Bolt: 20 to 35 in-lbs. Once properly secured in place, you should have no further issues with your pinion nut installation. 3/8" x all lengths 45-50 ft lb. This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. Final torque on the pinion nut is necessary to compress the crush sleeve. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. With the pinion bearing properly lubricated, increase or decrease . Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. Another way to tell the difference between an 8.2 and an 8.5 rearend is to pull the cover and look at the bolt holding the spider gear crosspin. You will need a torque meter in inch-lb. The 7.5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. I don't use it on the bearing cap bolts. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. You can use this instead of the crush sleeve. The pinion nut should then be secured and tightened until there is no bearing play at all. Is a GM 10 bolt rear end good? GM: .035. Not only has the 10-bolt rearend proved its worth in high-performance, high-horsepower applications, but it has also been found to be a great unit for street/strip cars. 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 . This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. 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. You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. Preloading a bearing eliminates the clearance, which increases stiffness and reduces friction. While deciding on the ideal gear ratio for your bike, it's important to consider that a lower value will provide more comfortable pedaling, as you'll be able to spin the pedals at a higher cadence. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. The control arm-mounting ears on top of this 7.5 rearend denotes it is usable for any 1978-88 GM A or G-body intermediate like a Cutlass, Monte Carlo, El Camino, Malibu, Regal, or Grand Prix. Now that we know our pinion depth shim is correct we can do the final assembly. What is the gear ratio on a 10 bolt rear end? First I measured the old crush sleeve as a starting point. Talk to the experts. Tightening Torque Clamp Load 5 - 8 : Ring Gear Bolt Torque (Foot lbs) 120 : Bearing Cap Torque (Foot lbs) 135 : Pinion Nut Torque: Tighten as necessary to obtain correct preload: Pinion Bearing Retainer Torque (Foot lbs) :65 : . 2. unbolt pinion nut. 2008 Sprinter 2500 170 - camper van. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! 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). Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) 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. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. LBS. This is all with the old crush sleeve. Oct 29, 2001. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Depending on what you're using it for, there is an axle size to suit; 7.5/7.625-, 8.2-, 8.5- or 8.6-inches from smallest to largest respectively, so no matter how much horsepower you need to support, there is an option available to fit your needs perfectly and provide excellent strength and reliability even under heavy loads and high speeds. When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. 1. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. MODEL 20. Ring gear bolts. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. Ring Gear Diameter: 8.500Cover Bolts: 10Ring Gear Bolts: 10Ax . Whilethe 10-bolt rearendslineage can be identified by the code stamps, which are usually on the passengers side axle tube, there are literally hundreds ofpotential codes for the three different 10-bolt rearend housings. May 22, 2021 / Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! What happens if you have too much backlash in differential. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. Good luck finding one of these, however, as they are very popular among performance enthusiasts. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. 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. Ring gear bolt torque: 110 ft*lb. 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. On the other hand, if preload is too tight then you'll need to take out the pinion gear and add extra shims in order to reduce bearing pressure against the races. Take Zach R. for instance. I have a 2004 Chevy Silverado 1500, 4.8L engine, 4x4, single cab, 6' bed, what are the torque specs for the drive shaft bolts that bolt the drive shaft into the rear end yolk? 24-32 INCH pounds?? For inquiries about our products and services, please fill out the form below. Pinion Nut Torque Spec. On the other hand, reducing the size of the pinion or increasing the size of spur gear will result in decreased top speed but with an increase in acceleration. It also uses a 10 5/8-inch irregular-shaped cover. These are considered highway gears that are good for top speed, not for off-the-line performance. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Are all GM 10 bolts the same? Date and location of manufacture are stamped in the axle tube, and this table deciphers the code.