[EFI70Blazer]

Your backlash is probably off now. You will need to buy a shim kit to adjust the carrier to the right or left to get the proper .008 - .010 backlash setting. To check this you will need a dial indicator with a magnetic base. When you get your shims measure each carrier shim and try to add the same amount back in (total of both shims). You will have to put in less on the drivers side if your carrier is too tight and more on the passenger side. If your carrier is too loose add shims to the drivers side and and take some away from the passenger side. Basically you want to keep the same amount of total shim thickness, but just swap shims side to side to get the correct backlash. When you get the proper backlash you will need to check your tooth contact patern to make sure your pinion is not too deep or too shallow. The ideal pattern to have is the contact pattern being the same length in the root of the tooth as the pattern in the top of the tooth. For new bearings, the drag on the pinion bearings should be 25 inch/lbs and 15 inch/lbs for used bearings. Just a little bit of advice, do not install the crush sleeve, locktite, or pinion seal until you get done getting your contact pattern correct and your backlash correct.


Good luck. If you have more questions feel free to ask.