I would agree. However I have not seen one myself, only descriptions of the T case. Did you post on Marlins site, He stops in every now and then and he would know.

BTW if what I have been told is right the 79 Tcases spline don't neck down like the later models. If that is corect yours should look like an axle, not with a narrow part like mine. [Linked Image]
Yes this one has been replaced. So now everything in the driveline has been replaces on my truck now except the shifter knobs.

Paul Elbisser #3233
pastTLCAEastern Rep.
Pres Rice on the Rocks
www.riceontherocks.org