So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. Additionally, vehicles with higher torque have better control over their handling due to stronger low-end acceleration which makes them safer on roads and highways. Pinion nut has no torque spec. The pinion nut is a 32mm or 1 1/4" so you need a socket and adapters for that. I am also replacing all the bearings on my son's 97 Chevy rear end. 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. It is important to have the right pinion nut for your 8.5-inch 10-bolt rearend. Pinion preload (new bearings): 17 - 30 in*lb. 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. The 12-bolt is generally considered to be the stronger of the two rear axles. CRAWLPEDIA Off-Road Encyclopedia. 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. Thats usually proven when used in high-performance, high-horsepower applications. The side bearing preload is the difference of preloads (5) x the gear ratio (3.73) = 18.65. 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. How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. CHECK FREQUENTLY as you progressivley tighten the pinion nut. If you're just starting out your adventure with single speed or fixed gear bikes then it's best to opt for ratios around 2.7-2.8 as they are easier on your legs and can help build up strength gradually as you continue cycling further and faster each time. Since it was so widely used, there is a better possibility of finding one of them at a salvage yard thanlocating a 12-bolt. 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. As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. Sometimes, pinion bearing preload can be a tricky procedure. (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). The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. Once you give everything a thorough inspection you can begin the re-assembly process. The lower end of this range will give you a cadence of 90 rpm which translates to an average speed of 30 km/h while the upper end will get you going up to 34 km/h. Before disassembly, we marked the bearing caps and kept the side bearing shims on the correct side. 14 TO 19. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. I don't use it on the bearing cap bolts. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . 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. In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? 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. We look forward to serving you! Speedway also offers the Economy Ring & Pinion Setup Tool we needed. 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. Some builders . Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. Is a GM 10 Bolt rear end good? 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. DIFF MODEL. 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. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. If in doubt, consult our staff of differential parts specialists. 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. . If it takes a 1/2-inch wrench to remove it, its an 8.2. 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. I got the price for the seal, and it is near $9. Zone 1.5 BL, 22x12s, California delete, Detroit TrueTrac, etc. 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. http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. Doing a gear ratio change but not sure what you want? When in doubt, refer back to step #6 for more information about suggested torque specs for your particular axle installation project. and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. Skip to main content. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. . There is no way to happiness.happiness is the way. 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. 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. You tighten it until the bearing preload is correct. 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. Find the torque thats on it before hand and tighten it down to that afterwards. If you are installing an axle and need to know the torque specs, it is important to first understand what torque is. See all 36 photos. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . I agree that the preload needs to be about 30 inch pounds. The easiest way to tell the difference is by looking at the brakes. Locate a Sierra Gear & Axle Distributor near you. The 7.5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. That being said, it isnot recommended for use behind engines that make a serious amount ofhorsepower. 1. It is therefore important to strike a balance by carefully adjusting the backlash so that it meets manufacturer requirements for that particular differential system. JavaScript is disabled. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. 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. I need the torque on the pinion nut for the rear differential. Cover Bolts: 25 ft lbs. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. That being said, limited gear sets are offered for the carriers, especially if you plan to change gear ratios. 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. West Coast Differentials has been distributing quality differential and axle parts since 1982. So, when adjusting preload, if it is too loose then the shims should be removed. The "feel" people are way more experienced that you or I so the top one is re-commended. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench. Not only has the 10-bolt rearend proved its worth in high-performance, high-horsepower applications, but it has also been found to be a great unit for street/strip cars. 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. 5. put back together and tight pinion nut to specified torque. The X and F-body spring perches come in two versions: mono-leaf (left) which is shallower than the multi-leaf (right). Part Number. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. 3/8" T-bolt - 30 ft lbs. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. Tighten nut until it takes 15-20 inch lbs of torque to rotate the pinion bearings: None: Self Locking Nut . Used bearings 10 to 14 inch pounds. Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires. lbs. When it comes to adjusting the backlash of your vehicle's pinion gear and carrier, there are a few rules of thumb to keep in mind. Follow along as Zach works over the old 10 bolt and brings it back to life. Since listing them all within this article is impossible, well be focusing only on visual identification. 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. It should be noted that while this axle is suitable for everyday driving and light duty applications, it must be upgraded if you plan on doing any serious racing or off-road activities with your vehicle. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. The torque it takes to crush . 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? When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. Quaility Gears provide guaranteed performance. The Fora platform includes forum software by XenForo. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) Then after getting the proper gear patterns you put the new crush sleeve and seal in place and tighten the pinion nut to force the crush sleeve. One intimidating part for a lot of guys is the rear end. 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. Additionally, it increases load capacity because it prevents misalignment due to vibration or thermal expansion of components. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. Jul 2, 2020 / Looking for a driveshaft for your 67-72 C10? CAP TORQUE. Are all GM 10 bolts the same? 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. We started by getting a rebuilt kit from Motive Gear . FSM says 181-325 ft-lbs. Torque is a measure of rotational force that must be applied in order to secure components such as axles and other parts together. 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! If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. . If the backlash is too tight, you'll need adjust the carrier shim by moving it away from the pinion. 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. 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. Rotate the pinion when tightening the nut to seat the bearings evenly. (note make sure the pinion bearing is well oiled when doing this procedure.) For bearings that are already in use, set preload at 15 inch-pounds; if they are new bearings then you should aim for 25 inch-pounds when setting preload. 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 pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. With its superior strength and durability, you can count on your PYN10 pinion nut to remain securely in place for years of reliable service. As an added reference, Speedway Motors also offers a great book from CarTech, titled "High-Performance Differentials, Axles & Drivelines" that helps with step by step breakdowns of the process. On top of that, many pickup owners find that making such modifications also provides them with a greater sense of control over their vehicles capabilities, allowing them to feel more confident and secure on their journey no matter what lies ahead on Oct 5 2022. with an impact. Pinion preload (used bearings): 8 - 10 in*lb. The amount of backlash varies depending on the quality and cost of the gearhead; more expensive precision gearheads have nearly zero backlash, while an inexpensive model may have as much as one degree or more. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. 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. MODEL 20. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. I have a 1993 Suburban K1500. 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.
How Many Children Does Jamie Lee Curtis Have,
Star Academy School Calendar,
Does A Sinus Ct Scan Show The Brain,
Can An Elected Official Endorse A Candidate,
Articles P