They changed mine at 15K when they changed the ring and pinion for noise issues I changed it again at 45k...it has 55k on it now. Mine's an 04. I put in reg gear oil...they call for a syn lube that seems real thin when you drain it

P.S Mine is also a 3:55 open

Last edited by Dcuda69; 01/11/11 08:16 PM.