I am going to be changing the fluids in my front and rear diffs, Transfercase, and doing a tranny filter change. how much gear lub and tranny fluid do I need to get to do this, I don't want to get it drained and end up with not having enough fluids.

 

Try here... under "Specs".
Has not been updated for 48RE tranny but I believe the quantities are the same.
http://www.dodgeram.org/

RJ

 

I found everything.

If anyone else needs to know.
4 qts for Transmission service fill
2 qts for Transfercase
4.75 pts (2 1/2 qts) for front diff
7.55 pts (4qts) for rear diff