Trans leaking

[tarriverarms]

So I replaced pan gasket and still leaking. Cleaned off (best I could) and wiped down pan and transfer case. Ran around block a few times and rechecked. Saw nothing and could feel no leaks.

This morning checked again and found two drops where the transfer case bolts to the trans (just behind support bar).

My guess is a seal inside the case? Is this where the input shaft seal is located?

Can't figure out how to resize on an IPad so no pics sorry.

[selkplitt]

The trans output seal was the culprit on my 89. Should be pliable but it was brittle and rock hard. Would leak a pint over two weeks unless driven regularly

[tarriverarms]

Would the output seal be where the drive shafts are?

[selkplitt]

The output shaft is the shaft that goes to transfer case from tranny. Need to drop the transfer case to replace it. Given that all the seals are 30 years old probably all should be replaced. Took mine out and took trans and transfer to shop. Had all seals replaced in both for 200. No more leaks but wasn't fun taking out the trans and transfer nor putting it back in

[TexasJ10]

It seems like all the usual leak points end up dripping at the rear of the case. That includes the o-ring seal at the dipstick tube and a very common leak point at the shift lever shaft where it exits the case. I had to take small pieces of paper towel and wrap them around these points to determine if my leak was actually at the shifter shaft rather than the rear of the trans. You might check these areas before dropping your transfer case. The dipstick tube is easy to take care of with the trans in the vehicle. The shifter can also be taken care of without taking the trans out but it is a total pita.

[selkplitt]

The output shaft is the shaft that goes to transfer case from tranny. Need to drop the transfer case to replace it. Given that all the seals are 30 years old probably all should be replaced. Took mine out and took trans and transfer to shop. Had all seals replaced in both for 200. No more leaks but wasn't fun taking out the trans and transfer nor putting it back in

[selkplitt]

Sorry for the repeat post