milehighbear3

Is there a certain time when you are suppose to change the lube in your rear-end or in the 4x4 hub??

rraiderr

If you tow a lot I would change it. Its an easy job.


Amsoil sever gear lube is a stout product.

Michael Andrew Serna

do you mean transfer case when you say 4x4 hub? if so think it depends on usage

milehighbear3

Yes, transfer case. No, I do not tow a lot. I towed a camper, small, about twice year into mtns but other than that, none. I only use 4 wheel drive when streets are real bad with snow, that's maybe five or six times during winter. I guess it wouldn[t hurt to change rearend when I get nice day. I'll have to get some 80 weight oil if I remember right and keep it on hand. Ty for feedback guys.

JCR 56

The rear differential uses 75w140 full synthetic, the transfer case uses transmission fluid.

Bullhorn

Depends on the truck for the transfer. My 02 originally had mercon, but after the switch to mercon v (which is not to be used in transfer cases) I read to put in ford transfer case fluid (XL-12)