Pinion angle question

Dana67Dart said

For whatever its worth my 1967 dart shop manual says that engine oil pan flange should be level ( shim the trans mount ) and the 8 3/4 pinion should also be level (shim the spring) this is for Dart 111" wheel base. there are other settings for other models.

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I think you mis read that somehow................

Crackedback knows what he is talking about. The driveshaft speeds up and slows down every 1/4 turn. The two joint angles at the ends cancel this effect between the trans shaft and the pinion shaft. If they are unequal, or OUT OF TIME (as with a separate slip spline/ yoke) they will vibirate

The short story is that with the car loaded "as normal" on the tires, and under heavy acceleration, the trans shaft and the pinion shaft should be PARALLEL to each other

This is my favorite "go to video" for the subject