 Transmission trouble (easy fix?)
I am the owner of an 89 Ford Thunderbird V6 4.8L with 220,000 Km's. Yesterday i got stuck in the snow (canadian). My buddy drove it out as i pushed becuz i'm stronger and he was just revving the crap out of the engine. He was rocking it back and forth and hitting the brakes and stopping between every switch of momentum. We got unstuck and proceeded. We than got stuck again and realised we now had no Reverse. and when you put the tranny in Neutral, the car went forward. I managed to limp it home in drive without any problems, drove great not overheating or anything. Threw it up on jackstands today and figured i would take a loot in the tranny pan for some metal/paper or any crap to tell me if the transmission was done. But the oil was clean, no dirt. Nothing!... except this plug looking thing. It kind of looks like a halfsphere (Diameter=10cm?) connected to a much smaller cylinder (Diameter=2cm?) The cylinder's length is about an inch and a half. Does anyone have any ideas where this plug came from? could it be why i'm having transmission problems? | 
