perez1989

I opened the top bolt on my TC to see if it had any fluid and I didn't feel any when I stuck my finger in there. So I filled it till it started driping out. Dextron Mercron is what I put in it. Did I put to much?

Dan4governor

nope, thats how you fill it...till it overflows, then put the bolt back in

91familyxj

I filled mine untill it started to come out. but any were between 2.2 to 3 pints

89Laredo

fill it till it runs out. You used the right fluid, DexIII/Mercon

perez1989

Cool. That's one less think I have to work on now.

96Cherokee

hey guys i posted a similar question before and i was told from several people told me i could put 5w30 is that safe should i drain it and put dextron III in it?

89Laredo

Drain it, its spec'd for DII. That is no longer around so you use DIII.

Dan4governor

you're supposed to use auto tranny fluid in it, but I've heard of people using motor oil in a manual tranny, so I don't see why it'd be a problem in a transfer case. the viscosities are very similar.

mrmikey32

cant you also use redline mt90?

i have a few gallons of this.

no, im not selling it

Dan4governor

mt-90 is great in the ax-15, and in diffs, I've never heard of gear oil in the t-case. I don't see why it wouldn't work, just seems like a waste of really good oil.

whowey

NO... A higher viscosity fluid like MT-90 is NOT for the T-case. The T-case is spec'ed for an auto tranny fluid for a reason. No one ever recommended motor oil in the T-case. And the new crappy Chrysler recommendation for the AX-15 has absolutely nothing to do with the New Process transfer cases. The T-case was spec'ed for Dexron(no T) II. Dex II is no longer available, so Dex III is the correct replacement.

MT-90 is great where it belongs. But to start saying "its good here" why shouldn't we use it elsewhere is how people get themselves into trouble. In a street driven daily driver its fine in the axles. But in a vehicle with larger tires, lockers, or doing alot of hauling there are better choices.

GoreXJ95

2.2 to 3.0 pints of dexron 3 fluid

mrmikey32

i didnt know, hence why i asked.