2008 Sprinter 2500 170 - camper van. We will safeguard your e-mail and only send content you request. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. 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. By Albert. big gear head. When looking at the housing from the rear, an 8.5 will have two squared off chunks of casting hanging on each side near the bottom of the differential. Final torque on the pinion nut is necessary to compress the crush sleeve. 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. But, did you know there is more than one style of 10-bolt rearend? The torque required to seat the nut is very large, possible 200 ft-lbs or more. Introduction. It is robust enough to withstand any punishment inflicted on it by racetrack use. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. Or some do it by feel. Thanks Mike, Id appreciate it. What happens if you have too much backlash in differential. There is no way to happiness.happiness is the way. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. without any detrimental effects occurring. range. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. How involved is the process of changing it? GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . 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 axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. This is especially true when it comes to cycling. 7/16" x all lengths 60-65 ft lb. The GM 8.5" 10 Bolt axle, also known as the GM 8.6" axle or GM 10-Bolt, is available in many front and rear axle . 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. 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. 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? It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! 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. The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? It also has an inner diameter of 1 . 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. 12 Bolt Rear Axle Torque Specs. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. As well as many other third member torque specs from Strange. Originally, gear ratios ranged from 2.41 through 4.10. 6 TO 10. DANA SPICER: .035. What is the gear ratio on a 10 bolt rear end? 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. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. All of the parts we sell are also used every day in our busy service shop. Nov 18, 2016. He is resurrecting a G-Body Chevy Monte Carlo and decided to reuse the original 3.73 gears and a factory GM posi unit. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. This process helps increase longevity of both the pinion gear and its tapered bearings while also providing optimal performance from both components at all times. For that reason,many enthusiasts are considering the 10-bolt. The torque it takes to crush . Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) For inquiries about our products and services, please fill out the form below. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. 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. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. If youre building a street car and want to improve performance, we all know the drill. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. Many times when you are rebuilding an existing rear end you want to save the original pinion bearing shim and re use it under the new bearing. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. Sometimes, you need to push yourself. That way, you dont unknowingly spend money on something you really do not want. Quaility Gears provide guaranteed performance. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. Then use lock-tight on the threads and tighten the nut back to where it was. PINION PRELOAD NEW INCH LBS. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). Since it was so widely used, there is a better possibility of finding one of them at a salvage yard thanlocating a 12-bolt. The pinion nut needs to be torqued to 250 ft/lbs. TORQUE SPECIFICATIONS. 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. CHECK FREQUENTLY as you progressivley tighten the pinion nut. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. Edit: Differential cap bolt torque: 90 ft*lb. The easiest way to tell the difference is by looking at the brakes. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. I am also replacing all the bearings on my son's 97 Chevy rear end. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. Is a GM 10 Bolt rear end good? Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. West Coast Differentials has been distributing quality differential and axle parts since 1982. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. 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. 8 to 11 in-lbs. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. Well show you what to look for in this buyers guide. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. You will need to know that there are different series of differentials (seriestwo and three). Have a seal puller if possible, makes getting the old one out a lot easier. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. These protrusions are larger than those on the 7.5 rearend. This sleeve must be replaced every time the pinion nut is torqued. 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. 1. remove d shaft straps push shaft aside. This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. Since listing them all within this article is impossible, well be focusing only on visual identification. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . Fords small block and big block engine families have their share of flexplate differences. Whats The Reason Enthusiasts Cant Get, Yes I Am A Dinosaur, And Why I Feel Electric Cars, Rare Rides: The 1969 Chevrolet Camaro COPO, SPEC Clutches: For That Next Engine Swap Or OEM Upgrade, Shop Tour: Brian Tooley Racing Expands To Be A One-Stop Shop, Moroso Anti-Roll Kit Is The Right Tool For The Dragstrip, Why You Need A Proper Fuel Tank Vent In Your Ride, Fenix Is A Next-Gen 69 Camaro With 1,180 Horsepower. 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. Tightening Torque Clamp Load (lbs.) 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. on old bearings. I have a 1993 Suburban K1500. 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. The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. The pinion on the left is part of a 4.11:1 gear set; the one on the right is a 3.08:1 pinion. When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. OEM bolts have thread locker on the threads. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Follow along as Zach works over the old 10 bolt and brings it back to life. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. 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. The following are recommended Differential Set-Up Specifications for various differentials. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. 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. 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 pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. Mine was a pita. 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 . Pinion Nut Torque Spec. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. 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. Pinion preload (used bearings): 8 - 10 in*lb. GM 10.5" 14 Bolt: 20 to 35 in-lbs. 8-11 in/lbs for broken in bearings is acceptable. Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Both axles use a third member that contains the differential, which is made up of the . Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. Connecting Rod Cap Nuts 38. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. The pinion diameter is 1.438 inches, and has 25 splines. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. Many times, if you locate a 10-bolt rearend, its usually a 7.5-inch unit. Some pinion nuts require a special procedure to be properly installed. Part Number. I have a 2001 2500 HD. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! To begin, the yoke or coupler must be attached to the pinion shaft. If used in a daily driver or cruiser application, the 7.5-inch rearend should survive behind an engine with 350hp, if traction is limited during spirited driving. 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. Maintaining your car's paint finish is essential to keep it looking great. 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. The purpose of preloading a bearing is to eliminate any existing clearance that has been designed into standard ball bearings by utilizing tension or compression loads applied directly onto each component within the assembly. Use the blue medium strength on the retaining bolt and the red on the others. If you installed a new seal, add 1 or 2 in-oz. Chrysler 300 and Dodge Charger 2006-2008 Torque Specifications Repair Guide. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. The small torque . These are considered highway gears that are good for top speed, not for off-the-line performance. .006" to .010" 120 ft-lbs. GENERAL MOTORS: APPLICATION: FT-LBS / ( N-m) AXLE SHAFT FLANGE BOLT 'S' BODY CAR: 27 (37) TRUCKS: 60 (82) AXLE SPINDLE NUT 'A' BODY: 192 (261) 'C' 'E' 'H' & 'K' BODIES : 180 (245) 'J' & 'L' BODIES . 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.) 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. 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. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. 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. Is a GM 10 bolt rear end good? Unfortunately, once this tension has been released the crush sleeve cannot hold it again. 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. First I measured the old crush sleeve as a starting point. If a bearing system is designed to have no clearance, then preloading is necessary. By reducing the amount of free play between components, preloaded bearings can provide greater accuracy and quieter operation than standard ball bearings with clearances. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. Now that the hard part is done you can re install the carrier with the shims in place, torque the bearing caps and run one more contact pattern to make sure everything is good to go. 14 bolts and 10 bolts are different, not sure about changing seals though. sny 00235 converted Too much won't hurt anything other than break the bolt. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . 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 . Jul 2, 2020 / The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. It also has an inner diameter of 1 3/16", allowing it to accommodate most 30 spline yokes without any extra modifications or components needed. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. 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. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. 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. On the other hand, reducing the size of the pinion or increasing the size of spur gear will result in decreased top speed but with an increase in acceleration. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Pinion Nut FT. LBS. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. (note make sure the pinion bearing is well oiled when doing this procedure.) If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. Upon initial . Mgrotel, nice cliff notes. 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. 3/8" T-bolt - 30 ft lbs. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. does anyone know the torque specs for a 10 bolt 7.5 for the pinion and carrier caps . Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.). You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. 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. The "feel" people are way more experienced that you or I so the top one is re-commended. 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. . To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. Used bearings 10 to 14 inch pounds. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. . Step 1: To seat, torque nut to 50 (lb-ft) while . That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. 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. 1988 C1500 Silverado, 5.7L with some go fast parts. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. 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. What is the torque specs on 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. You have to do it a little differently though. Lifted78Chevy. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. 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. I got the price for the seal, and it is near $9. All rights reserved. Dana 60. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. GM: .035. 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. Here's a link to when I did mine. Cover Bolts: 25 ft lbs. With its strong construction and corrosion resistant coating, the PYN10 provides reliable performance for years to come, making it one of the best choices you can make when securing your vehicle's rear axle assembly. 2 ways. 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. MODEL 20. ALL72156. Sometimes, pinion bearing preload can be a tricky procedure. Are all GM 10 bolts the same? The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. 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. 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. 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. BACK LASH 0.000". GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. After that we removed the old bearings and cleaned all the parts up in the solvent tank. Alternatively, shims can also be used to adjust the pinion depth. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. This distance must be precise; if it is too small, the gears will bind together and cause mechanical stress which can lead to premature wear or failure. First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. Reply Quote. . Oct 29, 2001. Doing a gear ratio change but not sure what you want? 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. Speedway also offers the Economy Ring & Pinion Setup Tool we needed. The rotational torque spec is between 15-19. 1/2" T-bolts - 50 ft lbs. While engine power is an indicator of a vehicle's ability to accelerate quickly and reach high top speeds, torque is an indication of how efficiently it can move.
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