When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. FSM says 181-325 ft-lbs. 2. unbolt pinion nut. This gives us confidence in the quality of the parts we sell. Some builders . Skip to main content. http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. RING GEAR TORQUE FOOR LBS. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Then use lock-tight on the threads and tighten the nut back to where it was. This ensures all parts remain tightly fitted together without any space between them, resulting in increased stiffness as well as reduced friction within the system as a whole. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. 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. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. Back off left-side adjusting nut approximately 2 slots. These protrusions are larger than those on the 7.5 rearend. With its strong construction and durable material, the PYN10 10-bolt 8.5" pinion nut makes for an excellent choice for those looking for reliable performance in even the most extreme environments. 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. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. Once you give everything a thorough inspection you can begin the re-assembly process. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. on new bearings, or 1.2 Nm (10 inch lbs.) 35-Spline Pinion - 250 ft lbs. The easiest way to tell the difference is by looking at the brakes. 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. This article is a compilation of information and and specs relating to the venerable GM Corporate 14 Bolt full-floating rear axle - also referred to as the 10.5" (after the size of the ring gear in inches) or just simply the "14b" for short. 1988 C1500 Silverado, 5.7L with some go fast parts. We show you how to keep that old GM transmission when swapping in an LS engine. The following table contains the proper specifications for all popular axles. When it comes to adjusting the backlash of your vehicle's pinion gear and carrier, there are a few rules of thumb to keep in mind. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. GM: .035. . An 8.2 (shown) will have the same contour as the cover. . Pinion Nut Torque Spec. 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. to do this. I don't use it on the bearing cap bolts. 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. 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. Use oil on the pinion nut washer surface during all assemblies . When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. 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. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. Bearing Cap Torque (Foot Lbs.) 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. Once you have obtained your desired setting, it is important to apply preload while rotating the pinion in order to ensure proper engagement with its mating components. 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. 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. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. 2 ways. Pinion preload (used bearings): 8 - 10 in*lb. If in doubt, consult our staff of differential parts specialists. 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. There are several differentials for the 10-bolt rearend. If it takes a 5/16-inch wrench to remove it, its an 8.5. . 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. 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. ALL72156. I need the torque on the pinion nut for the rear differential. Not only has Chevrolet taken the initiative to buy back some of their 2017-2019 Chevy Bolt electric vehicles (EVs) due to safety recalls, but they have also gone above and beyond by reimbursing owners the full purchase price for their vehicle. Additionally, this nut features a thread pitch of 11/16 x 20 which allows for easy removal during maintenance periods or when replacing bearings or other components within your axle assembly. 2023 Power Automedia. Pinion Nut FT. LBS. Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. This allows you to put the pinion gear in, set the pinion bearing pre-load, set the backlash and then run a contact pattern without the chance of compressing the crush sleeve too much. It saved me time and effort trying to crush a brand new crush sleeve. The reliability of the axle tube and . What size is pinion nut Silverado? When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Axle Images: Axle Details. 14 TO 19. If your mom is lunch, then yes, I've eaten lunch twice today. When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application. The pinion diameter is 1.438 inches, and has 25 splines. Over 6,000 Automotive Torque Specs. While the 8.5-inch rearend was used on vehicles up to 1999, The 8.6-inch (8.625) was used on 2000 and later-year trucks. DANA SPICER: .035. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. on old bearings. This means that extra care and attention needs to be taken when installing these components so that they do not become damaged or rendered unusable. 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. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. In addition, if the sleeve is over-crushed during installation then it must also be discarded and replaced with a new one as crushing it too much can cause damage to other components within your transmission. 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. Cover Bolts: 25 ft lbs. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It's got a 350 with a 10-bolt rear end. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. Find the application and ratio you need? Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Reports from multiple Chevy Bolt owners confirm that on May 28th, 2021, Chevrolet began taking steps to rectify any potential issues with these cars by paying off the original cost and allowing them to be taken off of the road. As well as many other third member torque specs from Strange. . Is a GM 10 Bolt rear end good? 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. Torque Specs on Dana 60. But for all intents and purposes, the 10-bolt rearend is a great unit for a street/strip car, and can be stout enough to handle even the occasional abuse delivered by use at the racetrack. 12 Bolt Rear Axle Torque Specs. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. Gear oil is nasty stuff, mostly in smell. A forum community dedicated to all General Motors truck owners and enthusiasts. Not only is it important to keep the backlash variation under 0.005?, but in an ideal world, no variation should be present at all. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. Pinion nut torque (shimmed preload style): 250 ft*lb. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. Connecting Rod Cap Nuts 38. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . However, when you have new gears, a new posi unit, and other variables like mixing housings with differentials you might have to try multiple shims to get a good pattern. you have it pretty much. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. 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. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. You can rest assured knowing that your axle is secured with this high quality product. 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. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. One thing often overlooked is the RTV sealant that needs to be applied to the splines (otherwise rear end grease can leak past the splines), and locktite on the new pinion nut. This one is not as easy as it sounds. The OEM pinion nut is 1 1/4 inches. Mgrotel, nice cliff notes. 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. Not only will you be getting the best quality performance with JEGS Pinion Nut, but you'll also have the convenience of knowing it's made to fit GM 8.875 inch 12-bolt car and truck axles. 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. How involved is the process of changing it? Furthermore, its thread size of 1 7/16"-20 makes it compatible with nearly all GM style rear ends from 1955 to present day models. 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. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. It also uses a 10 5/8-inch irregular-shaped cover. For the street/strip car, the 10-bolt rearend is a great choice. Are all GM 10 bolts the same? Data is accurate to the best of our knowledge and is offered as-is with no guarantee. The pinion nut should then be secured and tightened until there is no bearing play at all. The small torque . I have seen street 12 bolts that . GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. Our stock 10-bolt was plenty stout to withstand the torture of 165 hp from the ZedSled's stock 350 (yes, that was sarcasm), but we're looking down the barrel at 500 hp from our cammed-up 6.0 swap . with an impact. Crankshaft Pulley to Crankshaft bolt 77. The pinion diameter is 1.438 inches, and has 25 splines. PINION PRELOAD NEW INCH LBS. We pressed the new bearings onto the carrier and the front pinion bearing and went ahead and put the assembly together into the housing. What is the gear ratio on a 10 bolt rear end? If you're just starting out your adventure with single speed or fixed gear bikes then it's best to opt for ratios around 2.7-2.8 as they are easier on your legs and can help build up strength gradually as you continue cycling further and faster each time. Or some do it by feel. These are incredibly robust pieces of machinery that can handle a surprising amount of power, as long as you use the right axle for your application. CRAWLPEDIA Off-Road Encyclopedia. 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. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. Here's a link to when I did mine. 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. Oct 20, 2011. Once properly secured in place, you should have no further issues with your pinion nut installation. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). Ring Gear Diameter: 8.500Cover Bolts: 10Ring Gear Bolts: 10Ax . The "feel" people are way more experienced that you or I so the top one is re-commended. Is a GM 10 bolt rear end good? The torque required to seat the nut is very large, possible 200 ft-lbs or more. The more torque produced, the less energy needed to move the car forward. This website uses cookies or similar technologies to enhance your browsing experience. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. You keep on tightening the pinion nut until you are within the in-lb. We think top-notch customer service is the most important thing we do. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. There were an untold number of 8.2-inch axle assemblies built, and although it is only marginally stronger than the 7.5-inch rearend, it does have some aftermarket support. Pinion Nut Size: 1-1/4" Featured Products: GM 8.2"/8.5"/8.6" (Chevy) 10 Bolt / Aluminum Girdle Cover / TA Performance / TA_1807 . 6 TO 10. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. 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. Take Zach R. for instance. On the other hand, if there is too much backlash then this will also lead to excessive mechanical wear due to increased friction and noise as the teeth continually rub against each other. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. Preloading a bearing eliminates the clearance, which increases stiffness and reduces friction. Setup Specifications. 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. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. 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. Chevy Hardcore NEWSLETTER - SIGN UP FREE! MOPAR: 8.75" x 1.75" pinion: .090. . Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. Since listing them all within this article is impossible, well be focusing only on visual identification. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. 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. 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 rotational torque spec is between 15-19. Pinion bearing preload is measured in inch-pounds, and is a measure of the rolling resistance of the pinion bearings after proper torque has been applied to the pinion nut. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. 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. You will need to know that there are different series of differentials (seriestwo and three). The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. 8-Inch Ford Rear End Torque Specifications. 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. 1/2" T-bolts - 50 ft lbs. This technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. 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 . While this article focuses specifically on the GM 8.5 10-bolt rear differential, the parts and processes described herein cover most differential housings.Built from the 1970s through today (the 8.6" 10-bolt is still used in most GM . The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. 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. This strength comes from its larger pinion shaft diameter which measures 1.625 inches with 30 splines, 13 percent larger than the 1.438 inch diameter and 25 spline pinion shaft found on a 10-bolt axle. 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. 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. First I measured the old crush sleeve as a starting point. This is very important, because if you go too far the crush sleeve will be ruined. 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! The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. 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. Check the pinion preload by rotating the pinion with a torque wrench. does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. Record pinion flange rotating torque, with a torque wrench. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. 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. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. I've put a rachet strap to the axle, hit it with a hammer prayed from the inside but it won't budge enough for the c clip to clear the spider gear. There is an anomaly to the corporate 8.5-inch axle assembly that was used in some 1971 and 1972 Buick, Oldsmobile, a few 1969 through 1972 Pontiac vehicles, as well as the 1970 through 1972 Monte Carlo. . Upon initial . 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. Currie 60/70 : Torque . Just get a couple sacrificial pinion bearings and open them up a little so you don't have to press them on and off the pinion and add/remove shims until you get the correct preload shown on page 2 of the set up manual. 24-32 INCH pounds?? This results in improved performance, longer life span and more efficient operation of the system. The covers on the 8.5-inch rearends are often 11 inches round with a bulge on the drivers side to accommodate the ring gear. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: 3. remove yoke from splines. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. We will safeguard your e-mail and only send content you request. Automotive Chassis Torque Specs. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. It has to be drained to get a peak inside. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. 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. 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. Axle Type Cover Bolts FT. LBS. The Fora platform includes forum software by XenForo. 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. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. If it takes a 1/2-inch wrench to remove it, its an 8.2. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. .006" to .010" 120 ft-lbs. 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. Its strength and durability make it an ideal choice for those who want to take their car out for some fun on the track without having to worry about its performance or reliability. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. Follow along as Zach works over the old 10 bolt and brings it back to life. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. Search Car Torque Specifications by Engine or Model Dana 60. This will ensure that your backlash is correct without having to swap the shims. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards!
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