pinion nut torque specs gm 10 boltpinion nut torque specs gm 10 bolt

To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. 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. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . This axle was found in various vehicles from Chevrolets and Pontiacs to Oldsmobiles and Buicks with some of these models continuing production well into the early 80's. range. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. Ring gear bolts. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. 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. 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. It is not an uncommon sight to see a Yukon Gear Pinion Nut when it comes to automotive repairs. The following are recommended Differential Set-Up Specifications for various differentials. That way, you dont unknowingly spend money on something you really do not want. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. These protrusions are larger than those on the 7.5 rearend. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. By manipulating these two components and their ratio to each other, you can achieve different levels of performance from your vehicle that may suit your individual needs better than stock settings would. 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. It saved me time and effort trying to crush a brand new crush sleeve. With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! Order before 4PM and most parts ship out the SAME DAY. 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 easiest way to tell the difference is by looking at the brakes. 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. Doing a gear ratio change but not sure what you want? 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . Fords small block and big block engine families have their share of flexplate differences. 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 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. If in doubt, consult our staff of differential parts specialists. 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! grade 8. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. But, did you know there is more than one style of 10-bolt rearend? The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonalprotrusion at the top. Alternate Description. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. RING GEAR TORQUE FOOR LBS. Therefore, when building a performance car or truck that will be subjected to higher than normal stresses and torque loads, such as those produced by high horse power engines or increased traction created by sticky drag racing tires, it may be beneficial to choose a 12-bolt instead of a 10-bolt axle assembly in order to ensure maximum strength and reliability. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . Pinion Nut Size: 1-1/4" Featured Products: GM 8.2"/8.5"/8.6" (Chevy) 10 Bolt / Aluminum Girdle Cover / TA Performance / TA_1807 . With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. You can replace the pinion seal without changing the crush sleeve. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. 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 . 8-11 in/lbs for broken in bearings is acceptable. Sometimes, you need to push yourself. Before disassembly, we marked the bearing caps and kept the side bearing shims on the correct side. 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. 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. 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. While deciding on the ideal gear ratio for your bike, it's important to consider that a lower value will provide more comfortable pedaling, as you'll be able to spin the pedals at a higher cadence. Final torque on the pinion nut is necessary to compress the crush sleeve. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. TORQUE-TENSION REFERENCE GUIDE Printed in U.S.A. Supply Part Number: 9702365 AS 06/14 Torque Poster . 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. We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. Upon initial . If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. If you installed a new seal, add 1 or 2 in-oz. 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. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. The reliability of the axle tube and . If your mom is lunch, then yes, I've eaten lunch twice today. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. The "feel" people are way more experienced that you or I so the top one is re-commended. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. 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. See all 36 photos. increments until rotating torque is achieved. This is very important, because if you go too far the crush sleeve will be ruined. GM 8.6" differentials can be installed in a GM 8.5" axle with the proper conversion bearings. Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. lbs. 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. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. While adjusting preload can provide some relief from overly-stiff or soft springs, ultimately you should replace the springs themselves if they dont provide the desired level of performance. It also uses a 10 5/8-inch irregular-shaped cover. Follow along as Zach works over the old 10 bolt and brings it back to life. 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. 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. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. This is especially true when it comes to cycling. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Now that we know our pinion depth shim is correct we can do the final assembly. minimum is 181 ft-lbs., maximum 325 ft-lbs., keep cranking till you get within the range of 7.8-11.3 in-lbs of preload torque on the pinion. I don't use it on the bearing cap bolts. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. 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. . 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). Is that really all it takes? In addition, if the sleeve is over-crushed during installation then it must also be discarded and replaced with a new one as crushing it too much can cause damage to other components within your transmission. 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. MOPAR: 8.75" x 1.75" pinion: .090. . The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. Jul 2, 2020 / Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. 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. Originally, gear ratios ranged from 2.41 through 4.10. I need the torque on the pinion nut for the rear differential. ring gear bolts torque at 175lb/ft, bearing cap bolts torque at 200lb/ft, and the ring gear backlash should be between .006-.010 for aftermarket gears, .005-.007 for OEM gears. 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. Once properly secured in place, you should have no further issues with your pinion nut installation. 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. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. 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. . GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. The following table contains the proper specifications for all popular axles. This is zero backlash. With the pinion bearing properly lubricated, increase or decrease . Next remove the nut and change the seal. 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. ALL72156. By continuing to use our website, you agree to our Privacy Policy. 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. An 8.2 (shown) will have the same contour as the cover. 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. with an impact. 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. By following these steps carefully and precisely, you can ensure that your gear and carrier are set up correctly for optimal performance. First I measured the old crush sleeve as a starting point. Pinion Nut FT. LBS. Max Ellery's Land Cruiser Repair Manual 1969-1990 (FJ & RJ) Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. How tight should a pinion nut be? 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. These have been around since 1975, and were installedunder cars, small trucks, and vans up to the 2005 model year. Not only was the 10-bolt assembly used in low performance applications, but it was also utilized in a variety of different vehicles ranging from Camaros, Chevelles and Impalas to even the earlier Chevy IIs. West Coast Differentials has been distributing quality differential and axle parts since 1982. Take Zach R. for instance. Is a GM 10 Bolt rear end good? 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. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. Skip to main content. This is all with the old crush sleeve. The pinion diameter is 1.438 inches, and has 25 splines. If it takes a 1/2-inch wrench to remove it, its an 8.2. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. 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. Here is my related question at almost 1 a.m. and torn down in driveway need to get to work: There was quite a chance that you have crushed the sleeve beyond the preload spec to make it hard to turn. 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. It's got a 350 with a 10-bolt rear end. 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. Allstar Pinion Nut GM 7.5 8.5 ALL72156. That's all fine and dandy but my pinnion was chewing it's way through the carrier and now I can't get the passenger side c clip to drop out. Backlash arises when two gear teeth mesh together in order to transmit power from one shaft to another; the teeth need some play to avoid jamming and ensure smooth operation. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. 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. (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). To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. Crankshaft Pulley to Hub Bolts 37. 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. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. 8-Inch Ford Rear End Torque Specifications. 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. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. 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. Our Mopar flexplate buyers guide will help. if it is under twents hold the yoke with a pipe wrench and tighten just a little at at time till the torque wrench reads a constant 20 inch pounds for the revolutions. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. 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. 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. ExtCab96S_Dime . 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 method works every time is done precisely as described. 1989 Toyota Pickup/3vze/R150F/Dual RF1A's/8.0 Detroit/8.0 Detroit/5" SAS/38 TSL'S. The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? We have your differential parts in stock ready to ship today. 3/8" x all lengths 45-50 ft lb. JavaScript is disabled. 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. Save Share. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. 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. I have been taking it to ~250-300 ft lbs. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Differential Locker Comparison - A detailed comparison of popular differentials and lockers. 5. put back together and tight pinion nut to specified torque. Automotive Chassis Torque Specs. DIFF MODEL. Its strength and durability make it an ideal choice for those who want to take their car out for some fun on the track without having to worry about its performance or reliability. Used bearings 10 to 14 inch pounds. Are all GM 10 bolts the same? LBS. 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. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. Call 800.979.0122, 7am-10pm, everyday. 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 rotational torque spec is between 15-19. Original gear ratios in pickups can range from 2.41:1 all the way up to 4.10:1, offering a wide variety of options depending on your needs and preferences. 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. 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. If a bearing system is designed to have no clearance, then preloading is necessary. Gear oil is nasty stuff, mostly in smell. for new bearings. New bearings 19 to 22 inch pounds. 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. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. This results in improved performance, longer life span and more efficient operation of the system. Part Number. Since listing them all within this article is impossible, well be focusing only on visual identification. 1988 C1500 Silverado, 5.7L with some go fast parts. Record pinion flange rotating torque, with a torque wrench. tighten the nut down till its snug and put on your torque wrench and turn it about 3 revolutions. Setup Specifications. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. 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.) Find the application and ratio you need? On the other hand, if preload is too tight then you'll need to take out the pinion gear and add extra shims in order to reduce bearing pressure against the races. Torque measures the amount of force that is generated when the engine rotates at a certain speed. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. 10.50 PINION NUT: GM . 8 to 11 in-lbs. The distance between thebottom center bolt in the cover and its adjacent bolts is 3 1/4 inches. Use oil on the pinion nut washer surface during all assemblies . 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 . If it takes a 5/16-inch wrench to remove it, its an 8.5. 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. Locate a Sierra Gear & Axle Distributor near you. The 8.5-inch and 8.6-inch 10-bolt rears are stout and effective differentials that can handle more power than either the 7.5 or 8.2-inch rears. An important step I like to take is to assemble the pinion and differential case without the crush sleeve or the new pinion nut. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . Camshaft thrust Plate bolts 106 in-lbs. 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. 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. How a GM 10-Bolt Differential Goes Bad. Unfortunately, you cannot rely on this torque because the crush sleeve provides unpredictable and non-linear resistance as it buckles and crushes. Here's a link to when I did mine. Introduction. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. 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. Many mechanics use an impact gun while others insist the nut should be torqued by hand. BOP stands for Buick/Oldsmobile/Pontiac. Sometimes, pinion bearing preload can be a tricky procedure. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. There is no way to happiness.happiness is the way. 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. 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. This is an 8.2 BOP axle. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. 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. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. Uses 28 or 30 spline c-clip axles. . It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. Search Car Torque Specifications by Engine or Model 35-Spline Pinion - 250 ft lbs.

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pinion nut torque specs gm 10 bolt