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Im planning to do my ZF next weekend…delayed by a a crappy cracked fluid transfer pump…I plan on Valvoline max life in both the ZF and BW44.I put valvoline atf+4 in my transfer case. Had a couple quarts leftover from changing the trans fluid.
I dont think the hd's have 4x4 auto. Just 4 lock and 4 lo
3.5qts in the back if you have an 11.5" rearend 14 cover bolts and make sure you use limited slip bottle I buy mine from Ram dealership if you have a limited slip rearend. Front end is about 2 qts. I use Amsoil 75 90 full synthetic plus a qt of Lucas. and transfer case I always use Valvoline transfer case fluid. it is alot cheaper than a quart or ram transfer case oil at 40 bucks a quart andit takesabout 2.5 quarts there abouts. I have a2013 Laramie Limited Edition 3500. I change my gear oils every 2 years if it needs it or not.Guys I need your help. I am changing the dif fluids front and rear. Going with Mobile One as it has never let me down. Question is how many quarts does each diff take. I checked my truck and the owner manula is gone. Also what does the transfer case use for fluid and what quanity? Thank you in advance.
Limited slip additive isn't needed in the rears of 2500/3500's since there's no clutch packs.