Shop for New Auto Parts at 1AAuto.com http://1aau.to/c/553/e/driveshaftThe differential Pinion Flange is part of the universal joint that connects the drive . Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . This one is not as easy as it sounds. 1. remove d shaft straps push shaft aside. 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! FSM says 181-325 ft-lbs. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. Find the torque thats on it before hand and tighten it down to that afterwards. 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. It was in the 30-35 I "think" from GM. Differential cap bolt torque: 90 ft*lb. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these 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. You can feel the power of all that torque in your bones as it propels the car forward even faster than before. Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. Use oil on the pinion nut washer surface during all assemblies . Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. See all 36 photos. What is the gear ratio on a 10 bolt rear end? FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. 8-Inch Ford Rear End Torque Specifications. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. ExtCab96S_Dime . 8-11 in/lbs for broken in bearings is acceptable. 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. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) 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. 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. 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. Vendor Part Number. 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.) BACK LASH 0.000". The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. This is especially true when it comes to cycling. 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. The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. Recently a friend enlisted me to help rebuild his 7.5 GM 10 bolt. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. A forum community dedicated to all General Motors truck owners and enthusiasts. We have your differential parts in stock ready to ship today. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. It also uses a 10 5/8-inch irregular-shaped cover. #5. 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. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. It is estimated that this specific axle saw use on over 11 million vehicles during its reign of production making it one of the most popular axles ever created by GM for their consumer market line up. 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. 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. 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. How tight should a pinion nut be? 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. Follow along as Zach works over the old 10 bolt and brings it back to life. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. 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. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Part Number. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. 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. Uses 28 or 30 spline c-clip axles. This high quality product ensures that your vehicle's rear axle assembly will remain securely fastened and properly aligned during operation, giving you peace of mind when driving on the roads or tracks. 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. Cover Bolts: 25 ft lbs. Good info on this site from what I've seen so far, kudos. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. 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 . 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. 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. Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. 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. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. I got the price for the seal, and it is near $9. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! Is a GM 10 Bolt rear end good? Rotate the pinion when tightening the nut to seat the bearings evenly. 9 Minutes Read / Doing a gear ratio change but not sure what you want? Ring gear bolts. 1988 C1500 Silverado, 5.7L with some go fast parts. Jul 2, 2020 / tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. Step 1: To seat, torque nut to 50 (lb-ft) while . . Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 The pinion nut needs to be torqued to 250 ft/lbs. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. 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. I have been taking it to ~250-300 ft lbs. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. 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? You Make The, SEMA 2022: GEARWRENCH Leveled Up With Distinct Quality Hand, Reignite Your Cat Eye Silverado Headlights With, SEMA 2022: Paragon Corvette Adds Performance Parts To, PRI 2022: FuelTech Talks About The Tech Of The FT700, PRI 2022: Concept Performance Now Offers Aluminum LTR, PRI 2022: Get Locked In With Forgeline Beadlock, Creative Automotion: The Art of Farmtruck &, Randy Bolig The Media Mover And Shaker Behind Chevy, How Ken Lingenfelters Love for Corvettes Benefits So, Shop Tour: Prestige Motorsports Is Your One-Stop Hot Rod, Full Factory Tour: How Edelbrock Makes Its Cast Aluminum, HOLY SHIP! 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. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! I don't use it on the bearing cap bolts. These are considered highway gears that are good for top speed, not for off-the-line performance. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). 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. Recheck the torque to turn the pinion until it gets to the point where the amount of torque it takes to turn the pinion is between 15-25 in. Record pinion flange rotating torque, with a torque wrench. New bearings 19 to 22 inch pounds. What is the torque specs on pinion nut? when assembling the pinion into place, include the crush sleeve between the two pinion bearings. 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? Axle Images: Axle Details. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. 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. This results in improved performance, longer life span and more efficient operation of the system. This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. How a GM 10-Bolt Differential Goes Bad. 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. It was used in different models by all GM divisions with the exception of Cadillac. 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. Mine was a pita. This sleeve must be replaced every time the pinion nut is torqued. PINION NUT GM 7.5 8.5. 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. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. 10.50 PINION NUT: GM . You will need a torque meter in inch-lb. Preloading a bearing eliminates the clearance, which increases stiffness and reduces friction. For a better experience, please enable JavaScript in your browser before proceeding. 2023 Power Automedia. That does not describe how tight the pinion nut needs to be however. By Albert. Connecting Rod Cap Nuts 38. 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. 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. BOP stands for Buick/Oldsmobile/Pontiac. Follow along as we show how to measure and install a C10 one piece driveshaft. Now that we know our pinion depth shim is correct we can do the final assembly. Tightening Torque Clamp Load (lbs.) Back off left-side adjusting nut approximately 2 slots. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. One intimidating part for a lot of guys is the rear end. These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. You tighten it until the bearing preload is correct. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. By doing this, it allows for the desired amount of pressure or preload to be applied on these bearings so they are able to work in harmony with each other within their particular drivetrain system. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. 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. This method works every time is done precisely as described. 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. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. Setup Specifications. 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. 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. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. 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. 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. 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. GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. The lower end of this range will give you a cadence of 90 rpm which translates to an average speed of 30 km/h while the upper end will get you going up to 34 km/h. Looking for a driveshaft for your 67-72 C10? Im gonna go buy a good manual for shit like this. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. Since listing them all within this article is impossible, well be focusing only on visual identification. Too much won't hurt anything other than break the bolt. 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. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. That way, you dont unknowingly spend money on something you really do not want. There is no way to happiness.happiness is the way. 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. 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. 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. 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. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. Sometimes, you need to push yourself. This gives us confidence in the quality of the parts we sell. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. Order before 4PM and most parts ship out the SAME DAY. Would this be the same How to write up for my truck? Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. 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. 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 : . The rotational torque spec is between 15-19. Give us a try, we think you'll be glad you did! The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. If in doubt, consult our staff of differential parts specialists. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. lbs. DIFF MODEL. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. This is very important, because if you go too far the crush sleeve will be ruined. . 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. 14 TO 19. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. 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. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. Our LS swap adapter kits make it easy! See other Red Line Oil Products that we recommend. 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. on new bearings, or 1.2 Nm (10 inch lbs.) Is a GM 10 bolt rear end good? On top of that, many pickup owners find that making such modifications also provides them with a greater sense of control over their vehicles capabilities, allowing them to feel more confident and secure on their journey no matter what lies ahead on Oct 5 2022. 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. 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 . This is an 8.2 BOP axle. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. 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. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . . VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. TORQUE SPECIFICATIONS. All of the parts we sell are also used every day in our busy service shop. ft. To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. OEM bolts have thread locker on the threads. What size is pinion nut Silverado? stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . Sometimes, pinion bearing preload can be a tricky procedure. By Albert. The following table contains the proper specifications for all popular axles. If you installed a new seal, add 1 or 2 in-oz. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. 7.25 12-14: 6-7: 6-10: 55: 50: 8 IFS: 12-15: 6-8: 6-10: 55: 60: 8.25 12-15: 6-8: 6-10: 55: 60: 8.75 - 41 Case: 13-15: 6-8: 6-10: 55: 90: 8.75 - 42 Case: 15-25: 7 . This applies to all types of vehicles with any type of gearing system regardless of pitch or size it doesnt matter which one you change as long as you can adjust it accordingly. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance.

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