I have a 1986 Toyota Base Pickup, 22r 5 speed 4x4. The bottom of the truck from the transmission is leaking oil along with the transfer case and oil can be found all the way back to the rear crossmember. I am loosing around 1qt of oil a week. I have replaced valve cover/valley gaskets, Front main seal and oil pan gasket. The head has been re-worked and new seal along with the timing chain/cover/gasket. Any thoughts? Thanks in advance!

 

My guess is that the rear main or the oil pressure sender over on the passenger side down underneath is leaking. The rear main would drip out between the engine and the transmission. It would run backwards from there along the transmission and transfer case.

 

Thanks for the reply cabot. I was thinking rear main, but was curious to what everyone else thought. Of course the main issue is the excessive oil/dirt residue that I need to clean off. Thanks again for the reply!

 

Cleaning the crap out of everything certainly helps with that.

 

Yes sir!