8-Inch Ford Rear End Torque Specifications. We think top-notch customer service is the most important thing we do. You have to do it a little differently though. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. Differential Locker Comparison - A detailed comparison of popular differentials and lockers. With the pinion bearing properly lubricated, increase or decrease . If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. 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. Dana Technical Service Specs. The unique design and shape make installation easier while providing ample strength for off-road applications. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) Or some do it by feel. CRAWLPEDIA Off-Road Encyclopedia. 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. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. 7/16" x all lengths 60-65 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. 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 means that turning the pedals at the front will turn the back wheel 4.55 times over, which requires quite a bit of effort but allows for fast movement once achieved. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. It was first developed for racing cars where superior control on fast corners is essential for success; however, today torque vectoring differentials can be found in many production vehicles as well due to their exceptional performance benefits. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. This website uses cookies or similar technologies to enhance your browsing experience. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. This is especially true when it comes to cycling. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. 2023 Power Automedia. Is a GM 10 Bolt rear end good? By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. 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. Here's a link to when I did mine. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. 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. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. 3/8" T-bolt - 30 ft lbs. 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. The rotational torque spec is between 15-19. The correct way to do this is to use the yoke lock (part of the setup tool kit we bought) and use a breaker bar with a cheater pipe. 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. 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. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. We look forward to serving you! When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Ring gear bolts. 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 technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. We will safeguard your e-mail and only send content you request. Crankshaft Main Bearing Cap Bolts 70. Tightening Torque Clamp Load The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. 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. 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. It's got a 350 with a 10-bolt rear end. FORD: .020. To begin, the yoke or coupler must be attached to the pinion shaft. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). 2429 Mercantile Drive Suite A 8 & 9 BOLTS Locknut Size Threads per inch Steel Hex Locknut Steel Hex Flange Nut Grade C FNL Grade 9 Grade F Grade G Clamp Load (lbs.) 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. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. What size is pinion nut Silverado? Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more! 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. 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. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. 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. 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. At West Coast Differentials we are committed to making your experience with us totally enjoyable. Check the pinion preload by rotating the pinion with a torque wrench. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. 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. 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. Pinion nut torque (shimmed preload style): 250 ft*lb. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. 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. increments until rotating torque is achieved. 1. lbs. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. 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. 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. The OEM pinion nut is 1 1/4 inches. The small torque . 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. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. 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. That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. 24-32 INCH pounds?? 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. This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. The tension between the bearings of a crush sleeve is a very important factor in its performance, as it helps to ensure that the bearing stays correctly set and does not move or become misaligned. The pinion diameter is 1.438 inches, and has 25 splines. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. 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 talked to a few of our in-house race experts about ways to make this racing season your best one yet! Part Number. tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. How a GM 10-Bolt Differential Goes Bad. Take Zach R. for instance. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. You can feel the power of all that torque in your bones as it propels the car forward even faster than before. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. with an impact. 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. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. 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. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . We show you how to keep that old GM transmission when swapping in an LS engine. Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy7.5-inchrearend by measuring it. Many times, if you locate a 10-bolt rearend, its usually a 7.5-inch unit. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. For over a decade, the 8.5-inch 10-bolt was widely used as an axle in many cars and trucks produced by General Motors. Uses 28 or 30 spline c-clip axles. Pinion preload (used bearings): 8 - 10 in*lb. Differential cap bolt torque: 90 ft*lb. A higher engine power combined with more torque enables cars to accelerate faster while using less fuel - making it much more efficient and cost-effective in the long run. Once you give everything a thorough inspection you can begin the re-assembly process. If the nut is loose then the crush sleeve must be changed. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. 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. 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? There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. . 1988 C1500 Silverado, 5.7L with some go fast parts. If youre building a street car and want to improve performance, we all know the drill. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. There is no way to happiness.happiness is the way. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . The "feel" people are way more experienced that you or I so the top one is re-commended. These are two pinion gears for the 8.5-inch 10-bolt. 1/2" x all lengths 100-110 ft lb. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! . Sie Bear Caps FT. LBS; AMC 20 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.