Replacement fluids

[LThurman]

It is almost time to change the diff's and t-case fluids. What is everyone using or recommended. Was thinking of going full synthetic. Also when is it recommended to change the transmission fluid?



Thanx in advance for the help.

 

[LightmanE300]

For the diffs I'm using Mobil 1 synthetic 75w90. It meets all the required specs and doesn't stink/chatter like the Amsoil series 2000 I used. Several folks will report using the amsoil with no problems, but several also do. For the T-case and transmission, the service interval is 30k. You can do a search on the proper transmission fluid. Again, many people use Amsoil with no problems, but for trans fluid most stick with the mopar stuff.