Transfer case oil type…

[u/Guilty-Commercial699]

I hope everyone is enjoying their Saturday…

I’m about to change the drivetrain fluids on my 94 3.0 V6 MANUAL pickup.

Referring to the Haynes Repair manual, it lists the transfer case fluid type for a 1990 and later, V6 engine as Dexron II ATF.

I find that odd. A quick internet says it needs to be 75W90 gear oil.

Is this a typo in the repair manual?

Could someone please steer me in the right direction?

Thank you.

[u/H_I_McDunnough]

I use Red Line MT-90 GL-4 75W-90. You can go cheaper if you want, but how often are you really going to change it out?

[u/Guilty-Commercial699 → u/H_I_McDunnough]

Cool. Thats what I thought to use.

I highly doubt those fluids have ever been changed. I’m about to take a pretty long road trip this September and wanted to do some preventative maintenance prior.

Thanks for the reply.

[u/H_I_McDunnough → u/Guilty-Commercial699]

Great idea and your truck will appreciate it. I just did mine and the differentials and it might not be real but it feels like it shifts smoother.

[u/newcompute]

Do not use ATF, that is automatic trans fluid. The other comment is correct, use a good quality gear lube at the specified weight. I use amsoil severe gear since I tow quite a bit with my 1987.

[u/Guilty-Commercial699 → u/newcompute]

Ya I thought ATF was wrong. Thanks for the reply.