It has to be drained to get a peak inside. Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. Pinion nut torque (shimmed preload style): 250 ft*lb. With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. I agree that the preload needs to be about 30 inch pounds. This will help ensure that there isn't an excess of tension on these components, which can lead to premature wear or even failure. Many mechanics use an impact gun while others insist the nut should be torqued by hand. What is the torque specs on pinion nut? 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. 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. Looking for a driveshaft for your 67-72 C10? GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. To begin, the yoke or coupler must be attached to the pinion shaft. with an impact. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. 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 . Are all GM 10 bolts the same? 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. 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. grade 8. 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. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . . Our stock 10-bolt was plenty stout to withstand the torture of 165 hp from the ZedSled's stock 350 (yes, that was sarcasm), but we're looking down the barrel at 500 hp from our cammed-up 6.0 swap . This 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. 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. 3/8" x all lengths 45-50 ft lb. Cover Bolts: 25 ft lbs. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) Just think, now when you and Drew drive out to Moab, you can sit and take a nap every other time Drew has to fuel. It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. In this context, "hardest gear" refers to the ratio of front sprocket teeth to rear sprocket teeth - typically expressed as 4.55:1. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. Pinion preload (used bearings): 8 - 10 in*lb. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. Here are the thin shims from the Summit crush sleeve eliminator. Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. Save Share. Is that really all it takes? You have to do it a little differently though. For a better experience, please enable JavaScript in your browser before proceeding. 5. put back together and tight pinion nut to specified torque. 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. 1. remove d shaft straps push shaft aside. That does not describe how tight the pinion nut needs to be however. Data is accurate to the best of our knowledge and is offered as-is with no guarantee. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. CRAWLPEDIA Off-Road Encyclopedia. These are two pinion gears for the 8.5-inch 10-bolt. All of the parts we sell are also used every day in our busy service shop. The pinion nut needs to be torqued to 250 ft/lbs. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. 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. 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. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . 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. Connecting Rod Cap Nuts 38. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. 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. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. It also uses a 10 5/8-inch irregular-shaped cover. If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. 1. Tightening Torque Clamp Load (lbs.) Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. Well show you what to look for in this buyers guide. 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. 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. What is the gear ratio on a 10 bolt rear end? For inquiries about our products and services, please fill out the form below. May 22, 2021 / 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. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. Carrier Cap Bolts. Bearing Cap Torque (Foot Lbs.) Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) 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 . 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. New bearings 19 to 22 inch pounds. Continue tightening the pinion nut to collapse the spacer and preload the bearings. I have been taking it to ~250-300 ft lbs. This one is not as easy as it sounds. increments until rotating torque is achieved. You can rest assured knowing that your axle is secured with this high quality product. 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. 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. The small torque . For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. 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. For that reason,many enthusiasts are considering the 10-bolt. Sierra Gear & Axle is a premium line of light-duty differential parts. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. The carrier bearing rides in the races and you will snap the bolt off before you warp or crack the races. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. Sie Bear Caps FT. LBS; AMC 20 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. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). We started by getting a rebuilt kit from Motive Gear . 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. 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. Dana Technical Service Specs. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. Some of the most popular GM vehicles have come with 10-bolt rear ends. 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. on old bearings. If a bearing system is designed to have no clearance, then preloading is necessary. These basic steps should pertain to most GM rear differentials and if followed with leave you satisfied for many miles. 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. 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. (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). Our Mopar flexplate buyers guide will help. 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. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. It was in the 30-35 I "think" from GM. 1989 GMC Suburban SLE 2500 4WD 5.7L Granny 4-speed. These protrusions are larger than those on the 7.5 rearend. 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. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). Some builders . Currie 60/70 : Torque . 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. 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 . Instead of using a C-clip to hold the axle in the housing, these axle assemblies use bolt-in axles, much like an 8.2 BOP rearend. The closer the teeth count is between the two gears, the higher the speed output will be; conversely, if there is a greater difference in tooth count, then more torque will be generated. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. . 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. 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! 2 ways. 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. This procedure is necessary in order to ensure that everything within the drivetrain is working correctly and efficiently. . So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. We believe that our exceptional customer service and product knowledge is what sets us apart from the competition. 1988 C1500 Silverado, 5.7L with some go fast parts. The "feel" people are way more experienced that you or I so the top one is re-commended. PINION PRELOAD NEW INCH LBS. (note make sure the pinion bearing is well oiled when doing this procedure.) As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. EDLANTA there is a "crush" spacer between the two pinion bearings that when tightened properly gives you the proper bearing preload. For reference use at own risk. Since listing them all within this article is impossible, well be focusing only on visual identification. Record pinion flange rotating torque, with a torque wrench. Unfortunately, unless you have the two units side by side, it is nearly impossible to tell them apart. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. I have a 2001 2500 HD. Would this be the same How to write up for my truck? The 8.5-inch 10-bolt rearends have ten 3/4-inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the ring gear to the carrier. 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. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. 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. Thats usually proven when used in high-performance, high-horsepower applications.