Originally Posted by jakep4401
I want to change the fluid in my transfer case. Anybody know what kind of fluid i need too put in and how much?. I have a 2008 gmc sierra 2500hd 4x4
Your Owners Manual page 6-15
Transfer Case (Four-Wheel Drive) DEXRONŽ-VI Automatic Transmission Fluid.
Your Manual doesn’t give capacity but it’s 2 quarts.
I have used Allison Transynd oil and Mobile1 5w-30