My personal choices for RTV for the diff covers would be, in this order... Mopar RTV, Permatex Gear Oil RTV, then Permatex Ultra Black RTV.I appreciate all the advice. Thank you! I think I can do this!
I have my supply list and will order everything I need from Amazon.
Brake Cleaner
2 quarts Royal Purple 75W-90 Gear oil
Quart bottle pump
RTV Blue