Part Number. The pinion nut should then be secured and tightened until there is no bearing play at all. 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. For 30 spline pinion axles, PYN10 offers a 10-bolt 8.5" pinion nut that is designed to provide secure and reliable performance in the toughest of conditions. . havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. Our LS swap adapter kits make it easy! You can rest assured knowing that your axle is secured with this high quality product. 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. New bearings 19 to 22 inch pounds. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 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. 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. 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 is an 8.2 BOP axle. 3/8" x all lengths 45-50 ft lb. GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. ft. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. What is the gear ratio on a 10 bolt rear end? 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. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. 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? The easiest way to tell the difference is by looking at the brakes. This one is not as easy as it sounds. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . LBS. 2. unbolt pinion nut. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. 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 . 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. There is no way to happiness.happiness is the way. 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! 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. Is a GM 10 bolt rear end good? In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. See all 36 photos. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. 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. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . You tighten it until the bearing preload is correct. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Dana 60. Mikz86TA. 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. Mine was a pita. 9 Minutes Read /
The pinion bearing preload is an important component of the drivetrain system, as it works to ensure that the pinion gear's tapered bearings are running smoothly and efficiently. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. 4.replace seal. One intimidating part for a lot of guys is the rear end. Give us a try, we think you'll be glad you did! All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. CHECK FREQUENTLY as you progressivley tighten the pinion nut. Here are the thin shims from the Summit crush sleeve eliminator. 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. . Many mechanics use an impact gun while others insist the nut should be torqued by hand. You can replace the pinion seal without changing the crush sleeve. Locate a Sierra Gear & Axle Distributor near you. May 22, 2021 /
Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. The 10-bolt GM rear end has been used in many different applications since its introduction in 1968 and continues to be highly regarded as one of the toughest axles available today due to its proven durability and versatility over decades of use in a variety of situations requiring extreme performance requirements from street racing too off roading adventures. I then assembled the pinion, inner bearing, shim pack in the carrier then pressed on the outer bearing using a 20 t press then installed the yoke washer and nut. 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. Search Car Torque Specifications by Engine or Model 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. Fords small block and big block engine families have their share of flexplate differences. The small torque . Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. 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. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. on new bearings, or 1.2 Nm (10 inch lbs.) Sie Bear Caps FT. LBS; AMC 20 As well as many other third member torque specs from Strange. grade 8. 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. 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. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. 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. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. 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. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. Crankshaft Pulley to Hub Bolts 37. This results in improved performance, longer life span and more efficient operation of the system. There are several differentials for the 10-bolt rearend. Mgrotel, nice cliff notes. Typically, 10-bolt differentials are specific to a series of gears. This is zero backlash. After it has been properly crushed (by checking the rotating resistance of 19-22 inch pounds on the pinion) there should be at least 150 pounds torque on the pinion nut (or else you pull it apart get another crush sleeve and start over). for new bearings. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. Sometimes, you need to push yourself. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. . 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. #5. DIFF MODEL. The torque required to seat the nut is very large, possible 200 ft-lbs or more. It was in the 30-35 I "think" from GM. Dana Technical Service Specs. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. 35-Spline Pinion - 250 ft lbs. GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . 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 versatility makes it a great choice for those who want to take their car from the street to the track without worrying about its durability. Is that really all it takes? We started by getting a rebuilt kit from Motive Gear . You have to do it a little differently though. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. 2429 Mercantile Drive Suite A 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. lbs.) Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. We have your differential parts in stock ready to ship today. Carrier Cap Bolts. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. 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. Install left-side adjusting nut lock, washer, and bolt. The reliability of the axle tube and . Currie 60/70 : Torque . Data is accurate to the best of our knowledge and is offered as-is with no guarantee. Recently a friend enlisted me to help rebuild his 7.5 GM 10 bolt. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. We will safeguard your e-mail and only send content you request. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. For a better experience, please enable JavaScript in your browser before proceeding. FORD: .020. The 12-bolt is generally considered to be the stronger of the two rear axles. Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. By Albert. 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. A forum community dedicated to all General Motors truck owners and enthusiasts. 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. when assembling the pinion into place, include the crush sleeve between the two pinion bearings. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. Or some do it by feel. It's got a 350 with a 10-bolt rear end. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. If you're looking to get the most out of your pickup truck, you may want to consider changing the gear ratios. you have it pretty much. 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. Are all GM 10 bolts the same? Unfortunately, once this tension has been released the crush sleeve cannot hold it again. 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. The Fora platform includes forum software by XenForo. It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. Upon initial . Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. 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. 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. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. We think top-notch customer service is the most important thing we do. 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. 1. remove d shaft straps push shaft aside. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. PINION NUT GM 7.5 8.5. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. 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? 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. 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 : . Order our high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $49.95 plus S&H, a $54.00 value. One is the small, 7.5-inch, another is the 8.2-inch, and yettwo more are the 8.5 and 8.6-inch. I have been taking it to ~250-300 ft lbs. Not only is this a wise financial decision for both parties involved, but it also shows how much Chevrolet values customer satisfaction and safety. Lifted78Chevy. For that reason,many enthusiasts are considering the 10-bolt. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. 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. Back off left-side adjusting nut approximately 2 slots. It also uses a 10 5/8-inch irregular-shaped cover. Received 16 Likes on 13 Posts. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. Allstar Pinion Nut GM 7.5 8.5 ALL72156. Now that we know our pinion depth shim is correct we can do the final assembly. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. Whilethe 10-bolt rearendslineage can be identified by the code stamps, which are usually on the passengers side axle tube, there are literally hundreds ofpotential codes for the three different 10-bolt rearend housings. 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. Replace original worn or damaged nuts each time a gear set is changed. . The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. Ford 9 inch torque specs; Gear Ratio Calculator; Order Forms. If in doubt, consult our staff of differential parts specialists. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. 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. The "feel" people are way more experienced that you or I so the top one is re-commended. sny 00235 converted for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. This sleeve must be replaced every time the pinion nut is torqued. Ring gear bolts. Camshaft thrust Plate bolts 106 in-lbs. A forum community dedicated to GMC and Chevy full size owners and enthusiasts. If it checks out you can put your axles back in, C clips on, cross pin and bolt and you are ready to put the cover on and fill it with rear end lube! 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. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. 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 involved is the process of changing it? This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. 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. 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. 2008 Sprinter 2500 170 - camper van. You can use this instead of the crush sleeve. 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. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). GM 8.6" differentials can be installed in a GM 8.5" axle with the proper conversion bearings. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. 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. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. 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. This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. An 8.2 (shown) will have the same contour as the cover. Reply Quote. Is a GM 10 Bolt rear end good? 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. 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. Not only will you be getting the best quality performance with JEGS Pinion Nut, but you'll also have the convenience of knowing it's made to fit GM 8.875 inch 12-bolt car and truck axles. The control arm-mounting ears on top of this 7.5 rearend denotes it is usable for any 1978-88 GM A or G-body intermediate like a Cutlass, Monte Carlo, El Camino, Malibu, Regal, or Grand Prix. 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 . 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. 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. I thought the pinion nut would be more like 50-75 FOOT pounds? Over 6,000 Automotive Torque Specs. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. I have a 2001 2500 HD. We look forward to serving you! Used bearings 10 to 14 inch pounds. 12 Bolt Rear Axle Torque Specs. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. The pinion nut is designed to securely fasten the components together while also providing an effective seal against contamination from dirt, dust and other debris. Use oil on the pinion nut washer surface during all assemblies . GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. 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. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. If too tight, the bearings become overstressed and will fail prematurely, causing a catastrophic failure of both the ring and pinion gears. How a GM 10-Bolt Differential Goes Bad. 3. remove yoke from splines. 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. Would this be the same How to write up for my truck? It is important to keep in mind that this can change dramatically based on specific materials used or other variables so it is critical to be sure to consult any instruction manual included with your differential cover before attempting any installation. Preload plays an important role in many machine designs for its ability to reduce wear and tear on critical components while improving efficiency and accuracy. Additionally, its unique thread pattern provides torque retention while eliminating any possibility of loosening or vibrating off over time due to vibration or shock loads. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. Pinion preload (new bearings): 17 - 30 in*lb. ALL72156. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. Have a seal puller if possible, makes getting the old one out a lot easier. Our Mopar flexplate buyers guide will help. 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.
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