Drained the T-case and tranny.

Finally drained the transfer case and transmission tonight (filling with 90 weight as I type) and the stuff was nasty. Came out like warm chocolate pudding. I'm guessing the previous guy didn't change either, so both were, well, disgusting. Anyway, I was curious as to how much oil I should expect it to take for each. I know to fill the transfer case first, and then the transmission. What should I expect? Oh yeah, I don't know what transmission I have, but it's a three speed, with reverse towards the driver's front when in the seat, and it's a two stick transfer case. Any information would be greatly appreciated, along with any tips or tricks for filling the transmission.

 

sounds like T90 trans and D20 transfer case need a little more info.

It would serve you well to search some tech articals on them both start with Willy's tech. I would think.

Have fun

The novak adaptor site has good info on oils to use. look under knowledge base.

http://www.novak-adapt.com/

 

D18 was stock
most likely what you still have
unless......some PO has swapped the D20 in

 

transmission about 2.5 pts
transfer case about 3.5 pts

 

It says I should have a T90 transmission and a Spicer 18 transfer. I'm not the most knowledgable, but "they look right". I figured I had a T18 transfer case, but wasn't sure about the transmission. Thanks for the help and the link. It's now a favorite. I've finished with the transfer case and I'm currently filling the tranny.... man, wish that oil was about 20 degrees warmer....

 

Man, you guys are great! just typed, and got two responses before I could post!

 

Yeah, still getting used to the code names and acronyms.

 

My T-14/D18 has a passageway between them that allows them to share oil. If I'm not mistaken, your T-90/D18 setup is the same. You might find after checking regularly that the transfer case stays relatively full, but the transmission will run low. I got comfortable after a while with just filling the transmission knowing that the fluid was running down into the transfer case; saves a step if you need to do it often like I did.

 

Nice tip.

I guess thats kinda good that you gear oil looks like sludge. Mine doesnt even have time to get dirty before it all leaks out.R)

 

nothing like waking up to the smell of fresh 90wt in the morning eh?

of all the smells associated with jeeping i put that one right up there with the smell of overheated brakes and a hot clutch! R)

 

I like the tip for the hot water. That, or the day before, pour it into qt bottles and leave it in the truck for a day in the warm sunshine (yeah, here in the south it's still relatively warm in the sun) before pouring it in. I actually made a rig out of a coat hanger to hold the bottle while it drained into the tranny.

Thanks for all the help, guys!

 

Yup, drudging up an old thread. Need to change the tranny/tcase fluids, and replace. Sites are saying 80w under 32* and 90w above 32*. But everything I read here, all references point towards 90w. It's about 15 or so here in NH right now.