Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

System Specifications



Note: All lubricants should have MIL-L-2105C and API GL5 quality specifications.

Rear Axle

8 1/4" Thermally Stable SAE 75W-90
9 1/4" Thermally Stable SAE 75W-90
248RBI Thermally Stable SAE 90W

Note: Trac-lok differentials require use of friction modifier.