transmission/transfer case question
 

i need to know if the transfrer case shares fluid with the tranny and if the transfer case is the same on the auto's and the 4500's.

no they do not share fluid. but they may use simular fluids. I noticed a lot of transfer cases are using an ATF type oil now.

is it the same transfer case for auto and manual?

Same transfer case. Only difference is # of splines on the input shaft. The transfer cases uses ATF for fluid and it DOES NOT! share fluid with the transmission.

if it is sharing fluid something is wrong... there's actually a fancy little notch that if the output shaft seal in the transmission is leaking it'll drain the fluid kinda like a weep hole on a water pump to let ya know something isn't right. and to my knowledge they do use the same fluids... they've been using ATF as a lubricant in the x-fer cases for.... 20+ years?

if its an atuo than yes they use the same fluid if its a manual than no they do not use the same fluid

so ypu can't interchange them?

I had a few 90's vintage pick ups that I did fluid swaps on still took 90 wt in the transfer cases. those were standard trannys.

To use your transfer case on a stick tranny you will need a different input shaft for the transfer case.

The fluid as stated are different in a stick and transfer case but use the same when its a automatic.They do not share fluids unless you have an issue with the seal in between them and then its a alot of work for a seal which cost less than $10.

I took the automatic transmission fliud out of my transfer case about 150k ago.I run a Schaeffer Oil moly based synthetic gear lube in 20w instead and have had no issues or wear problems at all.While Ma Mopar thinks that tranny fluid is ok it really has minimal lubricating purposes so I removed it........Andy

sorry; not too familiar with standards and x-fer set ups... in the auto's atleast 94ish and up sharing fluid is a no no... now that i actually think about the 84 gasser with the NP208 did have abit of fluid in the coupler between the two... my mistake guys.