I need to replace my rear tranny seal. It is a TH350 from a 70 Chevelle. My local parts guy says he is showing three different shaft sizes but one of the three comes up much more often in his sales history, meaning that it is either the most popular size *(or just the one that wears out the fastest)*.
My original driveshaft (a 1969 El Camino w/ PG) fit right into the TH350 tranny, so it has to be a common size shaft. Does anybody know off-hand what the shaft size is supposed to be? Thanks, John Nasta
