Join Date: Sep 1998
Location: Mustang, OK USA
I probably should have been more clear. The configuration of the splines is exactly the same. By that I mean that a 70-earlier Muncie, P-glide, turbo 350, and a 3sp yoke should all physically slide all the way in and bottom out against the rear of the tail housing (actually, the tailshaft itself since it sticks out past the tranny a little bit). Now, there are several differences between yokes as far as the part where the u-joint cups fit. For example, Corvettes use clamps like the rear end yoke. Chevys use a snap ring just inside the hole to retain the cup. Olds has the snap on the back side of the hole with a groove in the bearing cup. but they will all slip onto your Muncie shaft. And the tiny hole? I don't know. I, personally, have used both, no problems.
Can anyone for sure tell us the purpose of the tiny hole?
Oops. Left out one thing. On 62-older trannys, the tailshaft and yokes are the same size as 63-later, BUT, they have course splines and will not interchange (don't know the spline count).
[This message has been edited by DZAUTO (edited 07-14-99).]