Set the preload carefully (see "Set Up Specifications") so that the bearings will have a long life. When it comes to suspension, preload is an important factor. lbs.) This one is not as easy as it sounds. If you're just starting out your adventure with single speed or fixed gear bikes then it's best to opt for ratios around 2.7-2.8 as they are easier on your legs and can help build up strength gradually as you continue cycling further and faster each time. 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. When riding a bicycle, the hardest gear available is sometimes necessary for tackling steep climbs and flats alike. The axle shafts are also held in place by four-bolt retainer plates at the outer bearing, not C-clips. Rancho Cordova, CA 95742, Bearing Preload, Backlash and Torque Specifications. It refers to how much tension is applied to the spring before it's installed in the vehicle and can be adjusted accordingly. CRAWLPEDIA Off-Road Encyclopedia. Products include ring and pinion sets, installation kits and axle shafts for GM, Ford, Chrysler, Jeep, and Toyota vehicles. Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary. Ultimately, both engine power and torque play important roles in determining a cars performance capability as well as its overall efficiency. 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. The most current parts and application information can always be found here on our website or by calling one of our differential parts experts. If you locate a rearend that has coil spring perches, it could be from a G, A, B-body, or El Camino. 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. The unique design and shape make installation easier while providing ample strength for off-road applications. sny 00235 converted But, did you know there is more than one style of 10-bolt rearend? The concept of low-end torque is an important one for drivers to understand when it comes to the performance of a vehicle. 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Failure to apply enough preload on the bearings can have an adverse affect on gear contact patterns. 9 Minutes Read /
on old bearings. It first appeared in 1970 production cars as a corporate replacement for the 8.2-inch 10-bolt rearend. I thought the pinion nut would be more like 50-75 FOOT pounds? It is estimated that this specific axle saw use on over 11 million vehicles during its reign of production making it one of the most popular axles ever created by GM for their consumer market line up. First I measured the old crush sleeve as a starting point. 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. 2023 Power Automedia. 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. You can rest assured knowing that your axle is secured with this high quality product. 10.50 PINION NUT: GM . A higher engine power combined with more torque enables cars to accelerate faster while using less fuel - making it much more efficient and cost-effective in the long run. Speedway Motors employees enjoy not only helping our customers, but also turning some wrenches in their downtime as well. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles. Sierra Gear & Axle is a premium line of light-duty differential parts. 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. Allstar Pinion Nut GM 7.5 8.5 ALL72156. The pinion diameter is 1.438 inches, and has 25 splines. This is done in order to decrease pre-load on the bearings; adding more shims will have an overall effect of decreasing it. 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. lbs. Is a GM 10 bolt rear end good? stock 4L60E on 5th filter/fluid change; 2nd set of drive shaft u . and 12 bolt #s. found these #s at Richmond Gear: Torque specifications. 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 . If i missed any thing PLEASE tell me. It said you want this to be from 5-35. Our custom-length driveshaft kits make it a breeze to get the perfect 67-72 C10 driveshaft length. GM 10.5" 14 Bolt: 20 to 35 in-lbs. Call 800.979.0122, 7am-10pm, everyday. The pinion nut should then be secured and tightened until there is no bearing play at all. Pinion nut has no torque spec. With the carrier removed w/ new bearings pinion bearing preload should measure a rolling torque of 20-30 in/lbs. 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 . Mikz86TA. 2429 Mercantile Drive Suite A, Rancho Cordova, CA 95742, Copyright 2023 West Coast Differentials | Website Design by. 2.2L FOUR CYLINDER ENGINE: Camshaft sprocket bolt 96. 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. Unfortunately, once this tension has been released the crush sleeve cannot hold it again. 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. Shop Differential Pinion Bearing Spacers and Sleeves at Summit Racing. By Albert. Sometimes when repairing or replacing components within a transmission, you may encounter a crush sleeve. Ford 9 inch Torque Specs for Ford 9 inch center Section torque specs. 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. Alternate Description. If you installed a new seal, add 1 or 2 in-oz. Dana Technical Service Specs. This is zero backlash. Pinion nut torque (shimmed preload style): 250 ft*lb. Connecting Rod Cap Nuts 38. FORD: .020. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! They say ignorance is bliss but I say it's just damn expensive. (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). PINION NUT GM 7.5 8.5. 6 TO 10. We show you how to keep that old GM transmission when swapping in an LS engine. The 8-inch Ford rear axle was used from the early 1960s to 1980 in small and mid-size passenger cars with six- and small-block V-8 engines. The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. when assembling the pinion into place, include the crush sleeve between the two pinion bearings. The 8.2-inch 10-bolt has a smooth, round, lower-case area (no cast-in protrusions), with an 11-inch cover that has a diagonalprotrusion at the top. 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. 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. It's not easy, but pushing yourself can be rewarding; after all, with hard work come great rewards! Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. 2/3 drop, HP Tuned, Built 60e, 4.10s, Yukon Duragrip, etc. May 22, 2021 /
3. remove yoke from splines. Crankshaft Pulley to Hub Bolts 37. This is in contrast to high-end torque, which describes how much power and force is produced by an engine at higher RPMs, such as 4000 or 6000. The 8.5-inch 10-bolt rearend was used in cars and trucks over a wide range of years. For inquiries about our products and services, please fill out the form below. These are considered highway gears that are good for top speed, not for off-the-line performance. Like all Chevy 10-bolts, the axles are retained by C-clips on the inner end of the axle shaft inside the carrier. I have a leaky pinion seal and housing seal so I am planning on replacing the seals in the very near future. We look forward to serving you! 440-500 lbs ft and I wouldn't tackle it bring it somewhere where they know what they are doing..I have a four foot torque wrench that goes to 500 but thats one hell of a grunt and you have to hold the flange while doing this. If youre building a street car and want to improve performance, we all know the drill. This allows you to put the pinion gear in, set the pinion bearing pre-load, set the backlash and then run a contact pattern without the chance of compressing the crush sleeve too much. 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. Step 1: To seat, torque nut to 50 (lb-ft) while spinning hub. Originally, gear ratios ranged from 2.41 through 4.10. without any detrimental effects occurring. Sometimes, you need to push yourself. 9 Minutes Read /
If it takes a 5/16-inch wrench to remove it, its an 8.5. Used bearings 10 to 14 inch pounds. 1/2" x all lengths 100-110 ft lb. 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. A Series 2 carrierwill work with 2.56 and higher gears (numerically lower) such as 2.41. I also like to put some oil on the seal surface of the yoke to avoid tearing the new pinion seal. Axle Images: Axle Details. Mine was a pita. Follow along as Zach works over the old 10 bolt and brings it back to life. 5. put back together and tight pinion nut to specified torque. I have seen the ring gear bolts, pinion nut and retaining bolt come loose, but never a bearing cap bolt. To do this, measure 10 thousandths of an inch on the shim and shift it accordingly. Here is my related question at almost 1 a.m. and torn down in driveway need to get to work: There was quite a chance that you have crushed the sleeve beyond the preload spec to make it hard to turn. 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. 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. Pinion Bearing Preload (New) (inch/lbs) Pinion Bearing Preload (Used) (inch/lbs) Backlash (.001 in) Ring Gear Bolt Torque (Foot lbs.) TORQUE SPECIFICATIONS. Follow along as our employee Zach installs a GM 10 bolt rebuild kit from Motive Gear. Differential cap bolt torque: 90 ft*lb. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Axle Retainer Plate Nuts: 3/8" Grade 8 - 45 ft lbs. 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 . 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. 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. 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. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion . Our LS swap adapter kits make it easy! 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. This tension is achieved through a collapsible spacer which is placed between the bearings and then compressed by turning the pinion gear nut. Currie 60/70 : Torque . 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. Would this be the same How to write up for my truck? Give us a try, we think you'll be glad you did! With this pinion nut, you can rest assured that your vehicle will be ready for whatever terrain comes its way! GM 14 Bolt Specs (all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below) . Backlash refers to the distance between two mating gear teeth when they are not engaged. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE!