Originally Posted by Blacdout96 (Post 373360)

Great write up!! that might explain a few things for me. Two years ago I was working at a repair shop and deicded to put a posi unit in my rear ( this is before I researched things lol ) turns out it didnt work, so I put my old diff in and had my friend use a back lash tool cause i didnt know how it worked.

Originally Posted by Tru2Chevy (Post 373746)

If all you were doing was changing carriers (same gears) then no setting of backlash is necessary.

- Justin

Originally Posted by JSPERFORMANCE (Post 372749)

My rebuild service includes tearing down the rear diff, cleaning the housing and all parts to be re-used and inspecting them for damage or excessive wear, then installing all new races, bearings, your new gear set, and setting everything at the proper backlash and pinion depth using new pro grade shims which are a better design than those commonly found in "overhaul kits", this design makes it impossible for shims to walk out of their intended location once they are tightened down.

labor- $300
parts prices may vary

Josh

Originally Posted by JSPERFORMANCE (Post 372749)

My rebuild service includes tearing down the rear diff, cleaning the housing and all parts to be re-used and inspecting them for damage or excessive wear, then installing all new races, bearings, your new gear set, and setting everything at the proper backlash and pinion depth using new pro grade shims which are a better design than those commonly found in "overhaul kits", this design makes it impossible for shims to walk out of their intended location once they are tightened down.

labor- $300
parts prices may vary

Josh

Originally Posted by Z28Justin (Post 375148)

can you tune to correct the speedo?