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

I got the price for the seal, and it is near $9. This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. 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 . range. Axle Images: Axle Details. 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. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). The pinion nut should also measure 1 1/8 inches, if the OEM pinion nut is still in use. If it takes a 5/16-inch wrench to remove it, its an 8.5. Is a GM 10 Bolt rear end good? Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. CHECK FREQUENTLY as you progressivley tighten the pinion nut. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. FORD: .020. PINION PRELOAD NEW INCH LBS. 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. Carrier Cap Bolts. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. Bearing Cap Torque (Foot Lbs.) With careful consideration, selecting an appropriate option for your driving style can make a world of difference when it comes to performance and efficiency behind the wheel. The Hex is 5/16 the threaded part is SAE 5/16 inch 18 threads per inch. 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. We look forward to serving you! When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. Both axles use a third member that contains the differential, which is made up of the . Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. Alternatively, shims can also be used to adjust the pinion depth. The rotational torque spec is between 15-19. 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. 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. LBS. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. There are a few that have geared axles on here so they should chime in and help out with Real TECH :rocking: Fords small block and big block engine families have their share of flexplate differences. 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. 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. There are other 14b axles out there - a 9.5" ring gear semi-float for one, and even a 11.5 . 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. By asking ourselves what makes us different than other companies, our answer is that we deliver the level of customer service that other companies only promise. The unique design and shape make installation easier while providing ample strength for off-road applications. Follow along as Zach works over the old 10 bolt and brings it back to life. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. 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. If youre building a street car and want to improve performance, we all know the drill. CAP TORQUE. 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. With the pinion bearing properly lubricated, increase or decrease . Backlash = 6-10 (.001 inch) 2003 S-10 ZQ8 - 262/M5:bowtie: 1986 Pontiac Trans Am - 355/A4 Give us a try, we think you'll be glad you did! increments until rotating torque is achieved. Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count. It was used in different models by all GM divisions with the exception of Cadillac. Constructed from high quality steel, the PYN10 features an integral washer design that ensures proper alignment of the bearing preload during installation and prevents damage to both the yoke and bearings. Camshaft thrust Plate bolts 106 in-lbs. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. These are two pinion gears for the 8.5-inch 10-bolt. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. 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. Order before 4PM and most parts ship out the SAME DAY. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. It saved me time and effort trying to crush a brand new crush sleeve. Rightfully so, because when comparing the 10 and 12-bolt units, its definitely the more durable of the two. 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. 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. If the nut is loose then the crush sleeve must be changed. 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. From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. The pinion nut needs to be torqued to 250 ft/lbs. GM 10.5" 14 Bolt: 20 to 35 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. Part Number. 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. Have a seal puller if possible, makes getting the old one out a lot easier. All rights reserved. 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 . (note make sure the pinion bearing is well oiled when doing this procedure.) 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. CRAWLPEDIA Off-Road Encyclopedia. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. Upgrade your cam, intake, headers, stall converter, and the list goes on from there. 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. 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. Date and location of manufacture are stamped in the axle tube, and this table deciphers the code. . Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. It has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. Final torque on the pinion nut is necessary to compress the crush sleeve. The more torque produced, the less energy needed to move the car forward. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). 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. I thought the pinion nut would be more like 50-75 FOOT pounds? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. . The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. It's got a 350 with a 10-bolt rear end. 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 following are recommended Differential Set-Up Specifications for various differentials. 8 to 11 in-lbs. 7/16" x all lengths 60-65 ft lb. The easiest way to identify the 8.2-inch rearend at a glance is by the shape of the housing and the spacing between the lower bolts on the cover. Are all GM 10 bolts the same? . An 8.2 (shown) will have the same contour as the cover. 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. Step 2: Back off, then torque to 35 (lb-ft) for automatic hubs,or 50 (lb-ft) for manual hubs. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. You have to do it a little differently though. How tight should a pinion nut be? For reference use at own risk. Skip to main content. 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. 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 . Read More. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. 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. While engine power is an indicator of a vehicle's ability to accelerate quickly and reach high top speeds, torque is an indication of how efficiently it can move. Ring Gear Backlash Ring Gear Bolts to Cast FT. LBS. #5. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. One intimidating part for a lot of guys is the rear end. 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. But, did you know there is more than one style of 10-bolt rearend? It also has an inner diameter of 1 . Sie Bear Caps FT. LBS; AMC 20 However, when you have new gears, a new posi unit, and other variables like mixing housings with differentials you might have to try multiple shims to get a good pattern.