This should result in approximately 7 thousandths of an inch adjustment in terms of backlash. 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. In either case, it is important that this critical adjustment be performed correctly in order to avoid costly repairs or replacements down the line. Many times when you are rebuilding an existing rear end you want to save the original pinion bearing shim and re use it under the new bearing. As a result, this construction became one of the most popular axle assemblies on the market due to its durability and affordability. Good luck finding one of these, however, as they are very popular among performance enthusiasts. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. If your mom is lunch, then yes, I've eaten lunch twice today. Some pinion nuts require a special procedure to be properly installed. PINION NUT GM 7.5 8.5. Is that really all it takes? BOP stands for Buick/Oldsmobile/Pontiac. Find the torque thats on it before hand and tighten it down to that afterwards. This gives us confidence in the quality of the parts we sell. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. We have your differential parts in stock ready to ship today. Many times, if you locate a 10-bolt rearend, its usually a 7.5-inch unit. Currie 44 : Torque: Pinion Nut (Solid Spacer) 250 ft lbs. 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. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. 12 Bolt Rear Axle Torque Specs. The pinion nut needs to be torqued to 250 ft/lbs. GM 8.6" gears will fit GM 8.5" axles and as such have become the universal aftermarket size for both. Dana Technical Service Specs. If you're looking to get the most out of your pickup truck, you may want to consider changing the gear ratios. Carrier Cap Bolts. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. 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. 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 . 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. #5. It also uses a 10 5/8-inch irregular-shaped cover. That's all fine and dandy but my pinnion was chewing it's way through the carrier and now I can't get the passenger side c clip to drop out. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. Dana 60. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. Inside the 8.2-inch 10-bolt, the ring-gear bolts have 9/16-inch socket heads with 3/8-24 left-hand threads. GM 8.875" 12 Bolt Differential Ring Gear and Pinion Set. The 8.5-inch 10-bolt also shares the same pinion shaft diameter as the more expensive 12-bolt. Once the specified preload has been obtained, make sure the bearings are seated by rotating the pinion several times. 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. Next we disassembled everything, starting with the cross pin bolt, cross pin and C clips. An 8.2 (shown) will have the same contour as the cover. GM 10.5" 14 Bolt: 20 to 35 in-lbs. 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. 7/16" x all lengths 60-65 ft lb. Ring gear bolts 65 foot pounds, bearing cap bolts 60 foot pounds. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. Use the blue medium strength on the retaining bolt and the red on the others. GM: .035. Bearing Cap Torque (Foot Lbs.) I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. 2. unbolt pinion nut. 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. 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 . 10.50 PINION NUT: GM . Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. With the pinion bearing properly lubricated, increase or decrease . The "feel" people are way more experienced that you or I so the top one is re-commended. 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. OEM bolts have thread locker on the threads. Original gear ratios in pickups can range from 2.41:1 all the way up to 4.10:1, offering a wide variety of options depending on your needs and preferences. 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. Unfortunately, once the tension on this type of sleeve has been released during installation it cannot be re-used since it will no longer hold the proper tension. The Fora platform includes forum software by XenForo. 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. If youre building a street car and want to improve performance, we all know the drill. http://www.gmfullsize.com/forum/showthread.php?t=41717&highlight=pinion+seal. Would this be the same How to write up for my truck? Furthermore, its thread size of 1 7/16"-20 makes it compatible with nearly all GM style rear ends from 1955 to present day models. 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. 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 sleeve must be replaced every time the pinion nut is torqued. RING GEAR TORQUE FOOR LBS. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). I have a 1993 Suburban K1500. Take Zach R. for instance. Try our Differential Gear Calculator. 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. increments until rotating torque is achieved. JavaScript is disabled. 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. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . To begin, the yoke or coupler must be attached to the pinion shaft. I was able to pull the old crush sleeve from the pinion gear shaft without damaging it, so I just reused it and added a 0.51mm shim to it. The number of teeth on each of these gears determines how much rotational force is converted into torque or speed. 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. Gear oil is nasty stuff, mostly in smell. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! 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. Torque Specs on Dana 60. When it comes to Chevrolet rearends, its the 12-bolt that seems to get all the accolades. To reach an accurate level of tension or preload, experience and expertise are usually required when dealing with this type of repair work. 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. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. 14 bolts and 10 bolts are different, not sure about changing seals though. 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. Camshaft thrust Plate bolts 106 in-lbs. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. 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. I thought the pinion nut would be more like 50-75 FOOT pounds? What is the gear ratio on a 10 bolt rear end? MODEL 20. Sometimes it feels like youre in a race car when you accelerate hard with a high-torque vehicle. Crankshaft Pulley to Crankshaft bolt 77. This method works every time is done precisely as described. For a better experience, please enable JavaScript in your browser before proceeding. Jul 2, 2020 / 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 has a black oxide finish that ensures corrosion resistance while its construction of hardened steel ensures durability even under extreme conditions. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences.
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