pinion nut torque specs gm 10 bolt

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. Usually, when people are discussing gear ratios, theyre referring to the relationship between a pinion gear and a spur gear. 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. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. This ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. 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. Vendor Part Number. So, in order to adjust the pinion bearing pre-load, shims of varying thicknesses are inserted into pre-load retainers. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. The more torque produced, the less energy needed to move the car forward. 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. 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. 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. ft. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. The trick is to get it tight as possible without crushing the sleeve any more then it already is crushed. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. Yukon Gear & Axle SK CSGM8.5 Yukon Gear & Axle Crush Sleeve Eliminator Kits | Summit Racing. With one nut per package and a 7/8-16 thread size, this pinion nut is made from strong steel and has a sleek black finish for a nice look. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. Pinion nut torque (shimmed preload style): 250 ft*lb. The pinion diameter is 1.438 inches, and has 25 splines. havent done it, but i have the haynes repair manual and ill type out the steps for you, may take me a second though. Peter - I'm retired but work part time as a pain in the ass. Carrier Cap Bolts. The "feel" people are way more experienced that you or I so the top one is re-commended. Loosen the right-side adjusting nut and tighten the left-side adjusting nut until the ring gear contacts the pinion without binding. 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. A 2.6-3.0 gear ratio range is perfect for flat places and most people find this ratio suitable for their needs. West Coast Differentials stocks a complete line of light duty axle parts for Chevrolet, Chrysler, Dana, Ford, GM, Jeep and Toyota and more! Pinion Nut (Solid Spacer) 28-Spline Pinion - 200 ft lbs. We pressed the new bearings onto the carrier and the front pinion bearing and went ahead and put the assembly together into the housing. 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. There were an untold number of 8.2-inch axle assemblies built, and although it is only marginally stronger than the 7.5-inch rearend, it does have some aftermarket support. 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. 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. Here are the thin shims from the Summit crush sleeve eliminator. 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. Sometimes, you need to push yourself. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. The distinction between these two types of torque can be useful for assessing how well a car will perform in different situations: cars with higher levels of low-end torque are typically better suited for starting from standstill or accelerating quickly; whereas cars with greater amounts of high-end torque are likely more suitable for reaching faster top speeds over long distances. Axle Order Form; Floater Axle Order Form; Custom Driveshaft Order Form; . I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. When compressing the crush sleeve, many guys use an impact wrench and end up crushing it too far, ruining the sleeve. Currie 60/70 : Torque . This difference can cause issues with accuracy and repeatability in some applications, necessitating either higher-end components or additional compensation mechanisms. Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility. If your mom is lunch, then yes, I've eaten lunch twice today. I reused the old crush sleeve and just added a thin shim out of the set to be able to get the pinion preload using the old crush sleeve. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. MOPAR: 8.75" x 1.75" pinion: .090. . If a bearing system is designed to have no clearance, then preloading is necessary. 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. Ring Gear Bolt Torque (Foot lbs) (N.m.) Bearing Cap Torque (Foot lbs) (N.m.) AMC; Model 15 : 20 - 40 (2.3 - 4.5 ) . 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. For inquiries about our products and services, please fill out the form below. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. Sierra Gear & Axle is a premium line of light-duty differential parts. 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. 35-Spline Pinion - 250 ft lbs. 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. All rights reserved. All of the parts we sell are also used every day in our busy service shop. 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. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. How tight should a pinion nut be? 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 . 14 bolts and 10 bolts are different, not sure about changing seals though. Good info on this site from what I've seen so far, kudos. New bearings 19 to 22 inch pounds. This versatility makes it a great choice for those who want to take their car from the street to the track without worrying about its durability. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. 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 . 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. Record pinion flange rotating torque, with a torque wrench. Is a GM 10 Bolt rear end good? By Albert. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). Tightening Torque Clamp Load First mark the position of the nut with a chisel or other method so you can tighten it back to exactly the same place. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. Setup Specifications. Axle Type Cover Bolts FT. LBS. Our Mopar flexplate buyers guide will help. 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. (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 oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. 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 : . Fords small block and big block engine families have their share of flexplate differences. By Albert. Oct 20, 2011. 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. 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. on new bearings, or 1.2 Nm (10 inch lbs.) Since listing them all within this article is impossible, well be focusing only on visual identification. Rotate the pinion when tightening the nut to seat the bearings evenly. What happens if you have too much backlash in differential. GM 10.5" 14 Bolt: 20 to 35 in-lbs. Some pinion nuts require a special procedure to be properly installed. Cover Bolts: 25 ft lbs. How do you fix a loose pinion bearing preload? From there I make very minute changes, checking the pre load with the inch lb torque wrench several times. Here's a link to when I did mine. The PYN10 pinion nut has been specifically designed to fit 30 spline pinions and provide a secure fit and lasting performance. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . That is theimpetus for why we decided to put this swap meet/junkyard identification guide together. Part Number. to do this. Most 8.2 factory covers also have the strangeprotrusionat the top. 1988 C1500 Silverado, 5.7L with some go fast parts. I have a 2001 2500 HD. For the fastest service, call our Differential Parts Experts at (800) 510-0950 for immediate assistance. 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. The unique design and shape make installation easier while providing ample strength for off-road applications. The pinion nut should then be secured and tightened until there is no bearing play at all. 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. This method works every time is done precisely as described. 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. 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?

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