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. 12 Bolt Rear Axle Torque Specs | It Still Runs Chevy Hardcore NEWSLETTER - SIGN UP FREE! Skip to main content. OEM bolts have thread locker on the threads. By Albert. 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. Many times, if you locate a 10-bolt rearend, its usually a 7.5-inch unit. 2. unbolt pinion nut. DIFF MODEL. The 12-bolt is generally considered to be the stronger of the two rear axles. This is also likely to reduce run times due to lower temperatures as theres less load being put on your vehicles engine when compared to running with a bigger pinion and smaller spur gear combination. Is a GM 10 Bolt rear end good? This assembly featured an 8.2-inch ring gear diameter as well as 28-spline axles which provided adequate strength for these vehicles. 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 : . 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. If it takes more than 25 in lbs to turn the pinion, then you have tightened it too much and you need to back the nut off. New bearings 19 to 22 inch pounds. Automotive Torque Specifications by Model - TorkSpec - Knowledge for Find out how to access AutoZone's Torque Specifications Repair Guide for 300, 300C & Magnum 2006-2008, Charger 2006-2008. Bear Preload IN. Mine is leaking. You will also notice the large, flat, cast-in protrusions at thefive andseven oclock positions. The unique design and shape make installation easier while providing ample strength for off-road applications. 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. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. 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. 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 . Alternatively, shims can also be used to adjust the pinion depth. The OEM pinion nut is 1 1/4 inches. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. It is essential to ensure that the pinion flange is firmly held in place with a fixture or tool. The 14 Bolt Bible | Pirate 4x4 To ensure optimal performance in any application, it is essential to pay close attention to the amount of backlash between gears on all differentials. Differential Assembly Specifications - gounitrax.com 2429 Mercantile Drive Suite A I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. 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. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! As well as many other third member torque specs from Strange. LBS. Tightening Torque Clamp Load 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. for new bearings. Torque specs for Pinion Nut on rear end Yoke | Team Camaro Tech (note make sure the pinion bearing is well oiled when doing this procedure.) Increasing the size of the pinion or decreasing the size of spur gear will result in increased top speed for your vehicle; however this will come at cost to acceleration and increase temperatures from increased load. Is a GM 10 bolt rear end good? Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. If your just swapping the pinion yoke out or putting in a new pinion seal and your re-using the old crush collar, just tighten the nut back down till ALL the slop is gone and then tighten about a 1/4 turn more to make sure there is tension on the old crush collar. We look forward to serving you! Not only does a torque vectoring differential perform the same basic tasks as a regular differential, but it also has an extra element that sets it apart: its ability to transfer torque between the left and right wheels independently. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. I have a 2001 2500 HD. 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? JavaScript is disabled. Differential Setup & Torque Specifications - Sierra Gear 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. Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. Torque Specifications Archives - AutoZone Take Zach R. for instance. 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. History and Identification of Chevy 10 and 12 Bolt Chevy Differentials 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. Repairing your C2 and C3 Corvette Rearend - MotorTrend PINION PRELOAD NEW INCH LBS. need rear diff torque specs - Diesel Place The 8.5-inch is often referred to as the "GM corporate 10-bolt" because of its multiple uses, and the 8.5-inch is a semi-float axle, meaning it has only one axle bearing per side, mounted inside the axle tube. Pinion nut torque? | Chevy Tri Five Forum General Motors torque specifications - rockfordcv.com Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . Save Share. 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. 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. 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. Differential cap bolt torque: 90 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 . 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. 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. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. This technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. 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. The large flanges are easy to grip and make installation or removal easier than ever before, allowing you to easily tighten or loosen the nut without fear of it slipping away. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Some pinion nuts require a special procedure to be properly installed. If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. Sometimes strength is an important factor when choosing between components, and this is true with the 10-bolt and 12-bolt rearends. It was in the 30-35 I "think" from GM. ExtCab96S_Dime . GM 8.5 10 bolt - 10 bolt cover with 8.5 ring gear. Quaility Gears provide guaranteed performance. 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. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. 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. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. 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. Received 16 Likes on 13 Posts. PDF Rear Axle Torque Specs Chevy Silverado - annualreport.psg.fr 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. Chevrolet C/K 1500 Questions - Pinion Seal - CarGurus As the speedometer rises, each gear shift is accompanied by an even more intense sensation of power, making every drive exhilarating and unforgettable. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. 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. For the street/strip car, the 10-bolt rearend is a great choice. This is zero backlash. The torque required to seat the nut is very large, possible 200 ft-lbs or more. 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. MODEL 20. How tight should a pinion nut be? Try our Differential Gear Calculator. An 8.2 (shown) will have the same contour as the cover. 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! 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 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. 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 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. The more torque produced, the less energy needed to move the car forward. on new bearings, or 1.2 Nm (10 inch lbs.) Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions. 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. Continue tightening the pinion nut to collapse the spacer and preload the bearings. These protrusions are larger than those on the 7.5 rearend. Inch pound torque wrench that will read that low of a number which will be "VERY" costly. . Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. Pinion preload (used bearings): 8 - 10 in*lb. You have to do it a little differently though. lbs. Talk to the experts. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. 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. DANA SPICER: .035. Differential Torque Values | In4x4mation Center - Morris4x4Center If youre building a street car and want to improve performance, we all know the drill. 4.replace seal. Pinion shaft lock bolt torque spec | NastyZ28.com Sie Bear Caps FT. LBS; AMC 20 The amount you tighten the nut (with or without the crush sleeve) is based on the amount of force measured in inch pounds it takes to rotate the pinion. You can replace the pinion seal without changing the crush sleeve. I like to slowly tighten the new pinion nut until I take up all of the front to back free play. I like to measure the old crush sleeve and machine down a solid pinion spacer to that dimension and then . We were lucky and had a desirable contact pattern on both the drive and coast sides of the gear teeth. 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. Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 When installing a new 8.5-inch 10-bolt rear differential, it is important to use the right pinion nut for your application.

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