Dogface I believe you're hitting the nail on the head here. I pulled out my driveshaft last night and the hole is tiny, like a breather hole. My yolk also looks as if someone cut it short about 1/2 inch after the spline stops. I JB welded it last night then once I get home from work tonight I'll pop it in there, prime the oil pump, then see if this engine will fire up. Keep your fingers crossed for me.
Jim I'll have to look into finding a different yolk that extends in further but for now this one will do just fine. My car won't be moving for many months so that driveshaft is really just a plug on the end of the transmission right now. My yolk does cover all of the spline but stops shortly after that.
