1993 Chevy Suburban

There are 3 different rear axles for your truck and you need to know which one you have. You can go on the site here and get an online manual for $10 and print what area you need to help with your problem. BUt you need a dial indicator to set backlash and pinnion depth. And an inch pound torque wrench to set pinion bearing drag or know what you are doing otherwise you'll burn the bearings out on the pinion.