Well guys, I've bought a bunch of Amsoil ATF and some motor oil on your recommendations. A couple of times in those threads people have mentioned that I need to pay attention to what I put in the rear end of this truck, given the substantial amount of towing I plan to do. So here I am to ask for more advice!
The owner's manual says to use 75w-90 in the front differential and transfer case. GL-5 in the differential and either GL-4 or GL-5 in the transfer case. It requires *SYNTHETIC* 75w-140 in the rear diff, GL-5 only.
So far I've bought enough SuperTech 75w-90 and synthetic 75w-140 to do a flush. I figure I'll put the SuperTech in there and leave it until my next oil change to try to flush out the old stuff a little better (is there a safe cleaner I ought to add for this? Do gear oils come with detergents now?).
What should I put in after the flush? Redline? Amsoil? Whatever's on sale? What's going to protect my driveline next summer when I'm drag a race car up and down the hills in 90 degree heat? Thanks in advance guys.
The owner's manual says to use 75w-90 in the front differential and transfer case. GL-5 in the differential and either GL-4 or GL-5 in the transfer case. It requires *SYNTHETIC* 75w-140 in the rear diff, GL-5 only.
So far I've bought enough SuperTech 75w-90 and synthetic 75w-140 to do a flush. I figure I'll put the SuperTech in there and leave it until my next oil change to try to flush out the old stuff a little better (is there a safe cleaner I ought to add for this? Do gear oils come with detergents now?).
What should I put in after the flush? Redline? Amsoil? Whatever's on sale? What's going to protect my driveline next summer when I'm drag a race car up and down the hills in 90 degree heat? Thanks in advance guys.