Oil sending unit was leaking oil by the electrical connection not the threads that go into the block. I took out the dip stick tube to turn with 1-1/16 wrench. That little nub at the back of the starter was in the way. Am I missing something? Please tell me there is a special socket or something to make the removal easier? Also I notice the bolt for the shifter stabalizer bar was gone. I think it stripped the aluminum threads. Is helicoil my only option? Adam.