Find the torque thats on it before hand and tighten it down to that afterwards. There are several differentials for the 10-bolt rearend. Come join the discussion about performance, lift kits, wheels, tires, modifications, troubleshooting, maintenance, and more! LBS. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 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. Step 3: Back off 3/8-turn for automatic hubs, and just enough to free the bearing for manual hubs. How Much Hp Can Stock 5.3 Injectors Handle, What Kind Of Gas Does A Jeep Cherokee Take, Popping Noise When Accelerating And Braking. 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. Drive Train Specialists Setup Specifications | DriveTrainSpecialists.com 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 . 9 Minutes Read / Then use lock-tight on the threads and tighten the nut back to where it was. Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained. Well show you what to look for in this buyers guide. increments until rotating torque is achieved. 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. The rotating torque must be 2 to 3 N-m (15 - 25 inch pounds). 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. for a ten bolt rear it should be about 20 inch pounds while you are turning the torque wrench.