Well, without the "search function" hard to look this up and also to find my old thread----here goes:
Got a 84 C10 -w- modded 305 and a 350 trans....has had a pesky leak of transmission fluid from around the front of the yoke; rear of the trans where it connects to the driveshaft---replaced the rear seal twice, replaced the smaller "little known" yoke gasket as well
(see here: .
http://www.73-87.com/7387garage/drivetrain/yokeleak.htm )
......seemed to stop my problem, but looked under there this morning---there is that pesky puddle again......any other ideas from the forum???

This is getting to be quite a nuisance.......!!