Just boughta new 2001,8.1 with allison. getting ready to change all fluids. was wandering if I COULD FIND OUT TYPE OF OILS/ weights, :help: brands AND CAPACITIES,
front differential
rear non posi
tranny
transfer case

Did you get your owners manual, it will tell you in there. Or check the "do it yourself" board I think its all there. Good luck with your "new" truck