claysmoker

I'm chasing a vibration issue in my '64, and I'm trying to find the original C2 specs for driveline angles. From what I've read parallel U-joint angles are ideal, but maybe this isn't the case with this setup. Or maybe I can't get there from here.

Right now the rear trans yoke is at 2.75 degrees tail down. The diff yoke is 1.45 degrees nose down. I think it needs to be nose up at close to the 2.75 degrees of the trans yoke, but then I've also read 0 degrees on the diff yoke is correct.

All the u-joints are fresh, drive shaft is straight and balanced. Diff has about 3K miles from complete rebuild.


Thanks for any comments.

Frankie the Fink

Parallel but in OPPOSITE planes.
Passenger cars should be in the 2* to 3* range I would think you need to adjust the differential....be very careful how you measure things; its easy to misread the angles.

I don't know where the 0* came from, U-joints are designed to operate at an angle.

Here is a good article on chasing vibrations:

MarkC

OP, it's nice to see you back. 👍

claysmoker

Thanks Mark. I've recovered enough that I feel like tinkering with the toy again.

Dave

claysmoker

Thanks for the link. Had not stumbled across that one.