Well,just went for a ride after draining the diff case. Drained out around two quarts.
I know I put in two quarts and the tube of limited slip friction additive 13 years ago.
I put in a tube of the friction additive and two quarts of Lucas 80-90 wt gear
oil.
I guess I should have changed it some time ago because I went for a pretty aggressive ride and turning right from a stop now is silent, NO GROWLING.
Any idea on how often one should drain and add new
oil for your diff case.
Jim
Any idea what is a good interval