Alright, i'm getting stumped on this one. I can't get the tranny output shaft seal out of my 73 240z, which still has the 4spd. It was leaking, but also sat for about 10-15 years. The rubber is pretty dried out, and a screw driver just seems to poke holes in it, and the screwdriver and pliers only seem to take chunks out of it, leaving the seal sealed up in the tailshaft. Any advice to get it out???