Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.). You keep on tightening the pinion nut until you are within the in-lb. Sierra Gear & Axle parts are designed and engineered to the highest quality specifications for use in street, off-road and performance environments. This applies to all types of vehicles with any type of gearing system regardless of pitch or size it doesnt matter which one you change as long as you can adjust it accordingly. On the other hand, if preload is too tight then you'll need to take out the pinion gear and add extra shims in order to reduce bearing pressure against the races. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. It saved me time and effort trying to crush a brand new crush sleeve. Axle Retainer Plate Nuts: 3/8" T-bolts - 30 ft lbs. Just out of curiosity,what are the 8.5 (r 65lbft & c 60lbft ?) By Albert. It doesn't have to be hard, and we offer some tips to keep your car's finish in top shape. Furthermore, this action reflects positively on the company's overall commitment to providing reliable transportation services while ensuring its customers' safety remains paramount at all times. Camshaft thrust Plate bolts 106 in-lbs. Some builders . Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). The 7.5 rearend uses an oval cover and the housing has two small cast-in protrusions near two of the bottom cover bolts. Is a GM 10 bolt rear end good? Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Cover Bolts: 25 ft lbs. FSM says 181-325 ft-lbs. 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. Search Car Torque Specifications by Engine or Model . Tightening Torque Clamp Load (lbs.) For the street/strip car, the 10-bolt rearend is a great choice. 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. Order our high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $49.95 plus S&H, a $54.00 value. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Speedway also offers the . JavaScript is disabled. It has to be drained to get a peak inside. Inside, the ring-gear bolts are the same as the 8.5 corporate unit, but the pinion-shaft diameter measures 1.438 inches. The torque it takes to crush . Pinion Nut FT. LBS. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. RING GEAR TORQUE FOOR LBS. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. This is an 8.2 BOP axle. 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. . In most cases, however, even with a straight case, a certain degree of backlash can be tolerated up to 0.005? If sticky tires are used, youll quickly turn the 7.5-inch rear into a pile of unusable parts. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. Sure, you know whats in there and what it does but are you willing to tear into it and rebuild the differential? CAP TORQUE. The retaining bolt can be hard enough to get out without using the red high strength Lock Tight on it. Not only is it important to keep the backlash variation under 0.005?, but in an ideal world, no variation should be present at all. Currie 60/70 : Torque . The 8-inch rear axle looks very much like the popular Ford 9-inch rear axle. Here are the thin shims from the Summit crush sleeve eliminator. This will cause the bearings to press more firmly against the races, thereby increasing preload tension. If it takes a 1/2-inch wrench to remove it, its an 8.2. Since listing them all within this article is impossible, well be focusing only on visual identification. 1. If in doubt, consult our staff of differential parts specialists. 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. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. 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. This heavy duty nut has been designed using high grade steel and features a zinc plated finish for maximum protection against rust and corrosion. The ideal amount of torque required on a pinion nut when installing an axle depends on many factors, but typically you should aim for 110-125 ft/lbs of torque unless otherwise specified by step #6 during the installation process. The reliability of the axle tube and . Use Loctite #271 on the bolt threads and torque in a crisscross fashion to 55 ft-lb. Crankshaft Pulley to Crankshaft bolt 77. What size is pinion nut Silverado? 2023 Power Automedia. 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. Finding a 12-bolt that is affordable, is getting to be anearly impossible endeavor. The first is to use a crush collar; this involves applying pressure between the yoke and cup until it reaches the desired depth. Alternatively, shims can also be used to adjust the pinion depth. The closer the teeth count is between the two gears, the higher the speed output will be; conversely, if there is a greater difference in tooth count, then more torque will be generated. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. 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 . When I changed all the bearings in my suburban rear end, I bought the crush sleeve eliminator shims from Summit. I got the price for the seal, and it is near $9. Therefore when dealing with these types of sleeves it's important to make sure they are installed correctly so as not to compromise its integrity or longevity. 1/2" T-bolts - 50 ft lbs. I agree that the preload needs to be about 30 inch pounds. 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. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. When working on the assembly of a differential, there are two methods for adjusting the pinion depth. When a very slight increase in pinion turning effort is noted, check the pinion rotating torque using an inch-pound torque wrench. This is all with the old crush sleeve. This sleeve must be replaced every time the pinion nut is torqued. 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. Edit: Is that really all it takes? Call 800.979.0122, 7am-10pm, everyday. 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. 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. grade 8. . Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. Just think, now when you and Drew drive out to Moab, you can sit and take a nap every other time Drew has to fuel. GM 10.5" 14 Bolt: 20 to 35 in-lbs. increments until rotating torque is achieved. 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. Good luck finding one of these, however, as they are very popular among performance enthusiasts. When combined with a low curb weight, this combination creates acceleration so fast it feels almost supernatural. Doing a gear ratio change but not sure what you want? May 22, 2021 / 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. (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). 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. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. LBS. All rights reserved. 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. . You can feel the power of all that torque in your bones as it propels the car forward even faster than before. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Free Shipping - Yukon Gear & Axle Crush Sleeve Eliminator Kits with qualifying orders of $99. Pinion nut has no torque spec. Yukon Gear's Pinion Nut makes any job more efficient by ensuring your parts remain secure while providing superior protection from contaminants. Pinion Nut Torque Spec. When the preload of the pinion bearings is incorrectly adjusted, it can have serious consequences. #5. This technology is particularly advantageous in improving vehicle handling and traction under all types of driving conditions, from wet roadways to tight turns. What is the torque specs on pinion nut? This is zero backlash. Once you give everything a thorough inspection you can begin the re-assembly process. Once properly secured in place, you should have no further issues with your pinion nut installation. We think top-notch customer service is the most important thing we do. The inch pound rating is the force required to turn the pinion after the crush sleeve has been crushed. As well as many other third member torque specs from Strange. 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. It was used in different models by all GM divisions with the exception of Cadillac. When additional shims are added, this increases the total width of the retainer assembly, pushing the bearing cones further away from their respective cups and as a result reducing drag on them. Continue tightening the pinion nut to collapse the spacer and preload the bearings. IMPORTANT: The pinion preload should be at or below 4 Nm (35 inch lbs.) . Have a seal puller if possible, makes getting the old one out a lot easier. 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. . Nut secures driveshaft yoke to pinion gear. Differential cap bolt torque: 90 ft*lb. Crankshaft Pulley to Hub Bolts 37. on new bearings, or 1.2 Nm (10 inch lbs.) 8-10 ft lbs: None: None: GM 12 Bolt Car: Torque: Lubricant: Thread Locker: Main Caps: OEM Housing: . How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors. GM 10 Bolt 8.2; GM 10 Bolt 8.5; GM 12 Bolt 8.875; GM 8.6 IRS; GM Install Kits; MOPAR. Depending on what you're using it for, there is an axle size to suit; 7.5/7.625-, 8.2-, 8.5- or 8.6-inches from smallest to largest respectively, so no matter how much horsepower you need to support, there is an option available to fit your needs perfectly and provide excellent strength and reliability even under heavy loads and high speeds. If your mom is lunch, then yes, I've eaten lunch twice today. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Thats usually proven when used in high-performance, high-horsepower applications. Used bearings 10 to 14 inch pounds. Talk to the experts. While this article focuses specifically on the GM 8.5 10-bolt rear differential, the parts and processes described herein cover most differential housings.Built from the 1970s through today (the 8.6" 10-bolt is still used in most GM . An 8.2 (shown) will have the same contour as the cover. 3/8" x all lengths 45-50 ft lb. 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. BACK LASH 0.000". 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. We talked to a few of our in-house race experts about ways to make this racing season your best one yet! If the nut is loose then the crush sleeve must be changed. Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. Race-spec ring and pinion gears for desert racing, rock bouncing, and rock . Gear oil is nasty stuff, mostly in smell. Whilethe 10-bolt rearendslineage can be identified by the code stamps, which are usually on the passengers side axle tube, there are literally hundreds ofpotential codes for the three different 10-bolt rearend housings. The pinion on the left is part of a 4.11:1 gear set; the one on the right is a 3.08:1 pinion. if it is under twents hold the yoke with a pipe wrench and tighten just a little at at time till the torque wrench reads a constant 20 inch pounds for the revolutions. 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. Ring gear bolt torque: 110 ft*lb. Carrier Cap Bolts. The pinion nut needs to be torqued to 250 ft/lbs. 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. We are available to help Monday thru Friday from 8 AM to 5 PM Pacific Standard Time, and most orders placed by 4 PM ship out the SAME DAY! Locate a Sierra Gear & Axle Distributor near you. The covers on the 8.5-inch rearends are often 11 inches round with a bulge on the drivers side to accommodate the ring gear. Dana Technical Service Specs. Some vehicles require an 8.5" 10-bolt pinion nut to secure the rear axle assembly of their vehicle. Like most 10-bolts, the axles are held in place by C-clips on the inner end of the axles. FOR 1994-2001 CHEVY S10's & GMC SONOMA's. **ALL TORQUE SPECS ARE PER GM FACTORY & HAYNES MANUAL**. With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. While backlash is a necessary component of manufacturing tolerances, it can be a significant source of problems for certain applications. The pinion diameter is 1.438 inches, and has 25 splines. Crankshaft Main Bearing Cap Bolts 70. 1988 C1500 Silverado, 5.7L with some go fast parts. Chevy Hardcore NEWSLETTER - SIGN UP FREE! It also uses a 10 5/8-inch irregular-shaped cover. Give us a try, we think you'll be glad you did! ring gear bolts torque at 175lb/ft, bearing cap bolts torque at 200lb/ft, and the ring gear backlash should be between .006-.010 for aftermarket gears, .005-.007 for OEM gears. JavaScript is disabled. GM 8.5" 10 Bolt / Ring & Pinion Gear Set w/ Master Bearing . If you find a rearend that uses a large spring perch like this, it is from either an X or F-Body. 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. 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. 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. We pressed the new bearings onto the carrier and the front pinion bearing and went ahead and put the assembly together into the housing. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. Backlash refers to the distance between two mating gear teeth when they are not engaged. It is internally different from the 8.2 Chevy, but has the same external bosses and brackets. 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. MOPAR: 8.75" x 1.75" pinion: .090. . Thanks Mike, Id appreciate it. The 8.5-inch 10-bolt rearend is hugely popular because aftermarket carriers and gears are easily interchangeable. This ring and pinion install kit comes with new pinion bearings, carrier bearings, races, crush sleeve, pinion nut, pinion seal, a gasket and even has the gear marking grease included. There is no way to happiness.happiness is the way. Our LS swap adapter kits make it easy! I then assembled the pinion, inner bearing, shim pack in the carrier then pressed on the outer bearing using a 20 t press then installed the yoke washer and nut. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. 1. remove d shaft straps push shaft aside. The following are recommended Differential Set-Up Specifications for various differentials. 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 ring and pinion setup guide is Copyright Crawlpedia.com - Please provide a link back to this page when copying. you have it pretty much. We show you how to keep that old GM transmission when swapping in an LS engine. It said you want this to be from 5-35. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. 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. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. Too much won't hurt anything other than break the bolt. 9 Minutes Read / All 8.6-inchrears have disc brakes, and 8.5-inch units have drum brakes.