Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. Find the application and ratio you need? If in doubt, consult our staff of differential parts specialists. The pinion nut should then be secured and tightened until there is no bearing play at all. You can use this instead of the crush sleeve. Talk to the experts. 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. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. The pinion nut is designed to securely fasten the components together while also providing an effective seal against contamination from dirt, dust and other debris. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. 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. Dana Technical Service Specs. Mikz86TA. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. 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. The reason why it's so hard to turn the pinion nut is because not only are you crushing the crush collar but you're also pressing the outer pinion bearing onto the pinion gear. 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. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. A forum community dedicated to all General Motors truck owners and enthusiasts. The unique design and shape make installation easier while providing ample strength for off-road applications. Just think, now when you and Drew drive out to Moab, you can sit and take a nap every other time Drew has to fuel. Good luck finding one of these, however, as they are very popular among performance enthusiasts. I thought the pinion nut would be more like 50-75 FOOT pounds? To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. The Fora platform includes forum software by XenForo. Talk to the experts. Mine was a pita. I need the torque on the pinion nut for the rear differential. Install left-side adjusting nut lock, washer, and bolt. Pinion Nut FT. LBS. What size is pinion nut Silverado? PINION PRELOAD NEW INCH LBS. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. How involved is the process of changing it? CAP TORQUE. This gives us confidence in the quality of the parts we sell. 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. These are two pinion gears for the 8.5-inch 10-bolt. Backlash refers to the distance between two mating gear teeth when they are not engaged. This is an 8.2 BOP axle. You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. Furthermore, this process helps improve performance by increasing load capacity due to preventing misalignment caused by environmental factors such as vibration or thermal expansion of parts over time; additionally it also allows for smoother operation with less noise generation compared to regular ball bearings with their built-in clearances leading ultimately to higher durability rates since theres less overall wear and tear on individual components throughout long term use. The date and location of manufacture coding changed in 1971. By Albert. 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. Some builders . Received 16 Likes on 13 Posts. This ring and pinion install kit comes with new pinion bearings, carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) Over 6,000 Automotive Torque Specs. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. Follow along as we show how to measure and install a C10 one piece driveshaft. Doing a gear ratio change but not sure what you want? 8-Inch Ford Rear End Torque Specifications. Setup Specifications. 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. May 22, 2021 / Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. Im gonna go buy a good manual for shit like this. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. Ring gear bolt torque: 110 ft*lb. Introduction. 3.08 and numerically lower gears = 1.660-inch, 3.23 and numerically higher gears = 1.950- inch, 2.73 and numerically lower gears = 1.615-inch, 3.08 and numerically higher gears = 2.00-inch, 2.56 and numerically lower gears = 1.530-inch, 2.73 and numerically higher gears = 1.720-inch. on old bearings. 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 torque it takes to crush . Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. 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. 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. 2429 Mercantile Drive Suite A If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. 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. 2. unbolt pinion nut. I then assembled the pinion, inner bearing, shim pack in the carrier then pressed on the outer bearing using a 20 t press then installed the yoke washer and nut. Ring Gear Diameter: 8.500Cover Bolts: 10Ring Gear Bolts: 10Ax . At West Coast Differentials we are committed to making your experience with us totally enjoyable. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. 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. 1. 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. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. 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. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. . Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. 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. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. 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. 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. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. By manipulating these two components and their ratio to each other, you can achieve different levels of performance from your vehicle that may suit your individual needs better than stock settings would. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Sometimes, pinion bearing preload can be a tricky procedure. It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) In addition, if a crush sleeve is over-crushed during installation then it must be discarded and replaced with a new one as it will no longer be able to provide the necessary level of tension between the bearings for them to function properly. 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. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. Differential Locker Comparison - A detailed comparison of popular differentials and lockers. These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. If you installed a new seal, add 1 or 2 in-oz. 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. Step 1: To seat, torque nut to 50 (lb-ft) while . 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. After that we removed the old bearings and cleaned all the parts up in the solvent tank. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. 9 Minutes Read / 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. You can simulate pinion bearing preload by tightening the pinion nut until the proper amount of drag is felt with only motor oil on the pinion . 2008 Sprinter 2500 170 - camper van. 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. Once you give everything a thorough inspection you can begin the re-assembly process. Locate a Sierra Gear & Axle Distributor near you. GM: .035. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application. Ring gear bolts. Dana 60. Uses 28 or 30 spline c-clip axles. 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 is a metal spacer, usually made of brass or aluminum, that is used to put tension between the bearings in order to keep them properly spaced and aligned. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. BACK LASH 0.000". 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. It is important to note that if possible, it is best practice to use an old or used pinion nut for this operation, as new ones can often bind when tightened too much. for new bearings. You keep on tightening the pinion nut until you are within the in-lb. #5. 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. 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? With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! Continue tightening the pinion nut to collapse the spacer and preload the bearings. Tightening Torque Clamp Load 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. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. Lighter and more efficient than its Ford 9-inch and Dana 60 rivals, the 12-bolt enjoys as much use amongst brand-loyal off-roaders as it . Oct 20, 2011. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. sny 00235 converted GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. 1/2" x all lengths 100-110 ft lb. What happens if you have too much backlash in differential. This is all with the old crush sleeve. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. Once properly secured in place, you should have no further issues with your pinion nut installation. OEM bolts have thread locker on the threads. PINION NUT GM 7.5 8.5. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! 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. Read More. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. 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. Looking for a driveshaft for your 67-72 C10? Upon initial . The closer the teeth count is between the two gears, the higher the speed output will be; conversely, if there is a greater difference in tooth count, then more torque will be generated. This will ensure that your backlash is correct without having to swap the shims. You will need a torque meter in inch-lb. Preload doesn't have any effect on spring stiffness; rather, its used as a way of compensating for springs that are too soft or too stiff. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. . The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. Call 800.979.0122, 7am-10pm, everyday. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. Part Number. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. You can feel the power of all that torque in your bones as it propels the car forward even faster than before. This results in improved performance, longer life span and more efficient operation of the system. FSM says 181-325 ft-lbs. Our LS swap adapter kits make it easy! It should be noted that while this axle is suitable for everyday driving and light duty applications, it must be upgraded if you plan on doing any serious racing or off-road activities with your vehicle. . 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 more torque produced, the less energy needed to move the car forward. 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. All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. FORD: .020. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. 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? These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. . 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. For that reason,many enthusiasts are considering the 10-bolt. 3/8" x all lengths 45-50 ft lb. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components.
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