Looking to find out how much oil goes in my rearend and what type should be used, have to changemy cover,it's a 2001 4.8 4x4 ext. cab. Thanks in advance.

 

id go with royal purple. i like their motor oil. a little expensive but suppose to be good stuff. for my 06 they told me to use RP Max Gear 75w90 2.1-2.75 qts depending on which size diff ring gear i had.

good luck

 

ITS A SYNTHETIC 75-90...EVEN AT ***-REILLY'S,ITS ABOUT 20 BUCKS A QUART...3 QUARTS ON A 1/2 TON

 

Yuppers...