ALL72156. :yipi: Thats it?? Pinion nut torque (shimmed preload style): 250 ft*lb. 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. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. 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. Fords small block and big block engine families have their share of flexplate differences. 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. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. . 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 . 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. Its strength and reliability have been proven time again, making it an excellent option for drivers looking for reliable performance from their vehicle. DANA SPICER: .035. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Continue tightening the pinion nut to collapse the spacer and preload the bearings. Edit: You can feel the power of all that torque in your bones as it propels the car forward even faster than before. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. With the exception of truck differentials with 30-spline axles, andthosecarrying 2.41 and 2.73 gears (series two), the differentials will support all gear ratios without having to change carriers. big gear head. 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. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. Sierra Gear & Axle is a premium line of light-duty differential parts. 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. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. 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. I used an 18" breaker bar with a 2 foot pipe on the end of it in order . Is a GM 10 bolt rear end good? Recently a friend enlisted me to help rebuild his 7.5 GM 10 bolt. .006" to .010" 120 ft-lbs. With proper maintenance, this rearend will hold up over time and ensure that your vehicle runs smoothly no matter what sort of conditions you put it in. Call 800.979.0122, 7am-10pm, everyday. Allstar Pinion Nut GM 7.5 8.5 ALL72156. 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. Quaility Gears provide guaranteed performance. The OEM pinion nut is 1 1/4 inches. 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. Only 1 nut, it all depends on if your using a new crush collar or not and if your just swapping out the pinion yoke or a full rebuild. tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. JavaScript is disabled. Next remove the nut and change the seal. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. 9 Minutes Read /
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. 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. 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. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. 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. PINION NUT GM 7.5 8.5. 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. By Albert. You can use this instead of the crush sleeve. The pinion diameter is 1.438 inches, and has 25 splines. 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 . Im gonna go buy a good manual for shit like this. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. 1. This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. 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 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Once you give everything a thorough inspection you can begin the re-assembly process. . Oct 29, 2001. 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. If a bearing system is designed to have no clearance, then preloading is necessary. 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. Or some do it by feel. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. 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. It also uses a 10 5/8-inch irregular-shaped cover. See other Red Line Oil Products that we recommend. The 8.5-inch pinion diameter is 1.625 inches, whereas the 8.2-inch is smaller at 1.435 inches. Bearing Cap Torque (Foot Lbs.) 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. By continuing to use our website, you agree to our Privacy Policy. grade 8. lbs. TORQUE SPECIFICATIONS. The pinion nut needs to be torqued to 250 ft/lbs. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. The 12-bolt is generally considered to be the stronger of the two rear axles. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. 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. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. 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. 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 "feel" people are way more experienced that you or I so the top one is re-commended. Vendor Part Number. 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. Tighten bolt to 20 ft/lbs. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. For that reason,many enthusiasts are considering the 10-bolt. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. How involved is the process of changing it? http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. These are two pinion gears for the 8.5-inch 10-bolt. 1. remove d shaft straps push shaft aside. 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. ft. Maintaining your car's paint finish is essential to keep it looking great. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . Pinion preload (new bearings): 17 - 30 in*lb. I have been taking it to ~250-300 ft lbs. By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. 9 Minutes Read /
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 will ensure that your backlash is correct without having to swap the shims. Rotate the pinion when tightening the nut to seat the bearings evenly. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. Ring gear bolt torque: 110 ft*lb. Differential cap bolt torque: 90 ft*lb. 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. Use oil on the pinion nut washer surface during all assemblies . This is all with the old crush sleeve. Is a GM 10 bolt rear end good? Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) . Automotive Chassis Torque Specs. Are all GM 10 bolts the same? 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. Over 6,000 Automotive Torque Specs. 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. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . 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. (Note: The 7.5 GM rear used different pinion bearings in 1979-80 vs. the 81-up axles, so you want to make sure that the old bearings match up to your new pinion bearings). Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. Jul 2, 2020 /
Upgrade your cam, intake, headers, stall converter, and the list goes on from there. Some builders . 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. This website uses cookies or similar technologies to enhance your browsing experience. Most 8.2 factory covers also have the strangeprotrusionat the top. Tightening Torque Clamp Load (lbs.) 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. MODEL 20. As an added reference, Speedway Motors also offers a great book from CarTech, titled "High-Performance Differentials, Axles & Drivelines" that helps with step by step breakdowns of the process. Received 16 Likes on 13 Posts. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. Nut secures driveshaft yoke to pinion gear. When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. in order to compensate for the drag of the new seal, the nut should be tightened more until the rotational torque of the pinion slightly exceeds what was recorded earlier, but not by more that 5 in/lbs. The engine roars and the tires dig into the pavement as they work to move your car forward, pushing you back into your seat with tremendous force. RING GEAR TORQUE FOOR LBS. These protrusions are larger than those on the 7.5 rearend. 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. for new bearings. 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. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). This is an 8.2 BOP axle. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. 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. The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Ring gear bolts. 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. Step 1: To seat, torque nut to 50 (lb-ft) while . If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. I don't use it on the bearing cap bolts. 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. Lifted78Chevy. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. That way, you dont unknowingly spend money on something you really do not want. This sleeve must be replaced every time the pinion nut is torqued. You keep on tightening the pinion nut until you are within the in-lb. 3/8" T-bolt - 30 ft lbs. If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. . 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. 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. 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. Talk to the experts. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. While a carrier-bearing girdle is available for the 8.2-inch rearend and does give some support to the housing it doesnt provide a reliable and suitably strong solution. Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. Back off left-side adjusting nut approximately 2 slots. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. Used bearings 10 to 14 inch pounds. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) 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. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. Low-end torque refers to the amount of power and force generated by an engine at low revolutions per minute (RPMs), usually between 2000 and 3000. Once you get close to the right pinion preload, shim thickness adjustments need to be made in the .003 and down range to make adjustments, small increments make a big difference in pinion preload. Bear Preload IN. Alternate Description. Mgrotel, nice cliff notes. 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. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. 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. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) CRAWLPEDIA Off-Road Encyclopedia. Then use lock-tight on the threads and tighten the nut back to where it was. 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. This technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. GM: .035. Preloading a bearing eliminates the clearance, which increases stiffness and reduces friction. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. 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. 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. Follow along as we show how to measure and install a C10 one piece driveshaft. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Part Number. 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. 2429 Mercantile Drive Suite A Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. 24-32 INCH pounds?? It involves placing a collapsible spacer between the bearings of the pinion gear, then using a torque wrench to tighten the pinion nut until it reaches the correct amount of pressure or preload on the bearings. The reliability of the axle tube and . GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. 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. Give us a try, we think you'll be glad you did! To begin, the yoke or coupler must be attached to the pinion shaft. Tightening Torque Clamp Load I am also replacing all the bearings on my son's 97 Chevy rear end. 1988 C1500 Silverado, 5.7L with some go fast parts. Currie 60/70 : Torque . 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. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. 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. OEM bolts have thread locker on the threads. All of the parts we sell are also used every day in our busy service shop. 2023 Power Automedia. Well show you what to look for in this buyers guide. 2 ways. On the other hand, if your backlash is too wide you will need to adjust by moving the carrier towards the pinion with a similar measurement technique. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. They say ignorance is bliss but I say it's just damn expensive. This method works every time is done precisely as described. There is a difference, but you cant see it unless you set both units on their side, and then measure the distance from that surface to the face where the ring gear attaches. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. 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. 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. Find the application and ratio you need? The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). Mikz86TA. Copyright 2023 Sierra Gear & Axle - Web Design by Zenxeon Technologies, Backlash for Aftermarket gears .006 -.012, Instructions Differential Installation & Setup, Differential Setup & Torque Specifications, GM RPO Codes Axle & Ratio Identification, Measurement Axle Shaft Length & Bolt Circle. 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. This essential part is designed for use on vehicles with a 1 1/4 inch socket and 7/8 x 14 thread that can be found in many common automotive applications such as differential covers, yokes, and axle shafts.