http://www.aulro.com/afvb/attachment...3&d=1334884691
The 10K oil changes are as per recommended on the Arduous service schedule on the second page.
If you are doing the engine oil at 10K intervals, Diffs and Transfer case should be done at 20K.
I'd do the Auto at 20K intervals also. You only drop about 50% of the fluid on a normal change so it should help keep the fluid fresh.
I've been using Penrite throughout:
HPR Diesel 5 for the engine
TRANS GEAR 75W-90 for Diffs and Transfer case.
Penrite have changed the naming on the ATF since I did mine last, so not sure what the equivalent is now.
cheers
Paul


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