Leaking TH350

[Dead Parrot]

The common leak point is the rear seal. Not to be confused with the seal at the end of the tail shaft. Tail shaft can be done without removal(drive shaft does have to be pulled). I think the real seal can also be done without trans removal. There is also a front seal but pretty sure that one requires removal. There is a fourth one that is buried inside the trans.

I had the front, rear and tail shaft seals swapped during an engine swap years ago. Skipped the fourth one as the trans shop said that one need a fairly complete disassembly. Pulled the trans as part of the swap.

Unless the leaks are pretty bad, fix can be deferred until other service is needed. A old piece of carpet under the trans will keep the floor clean.