Ideal driveshaft angle?

WallyWest

TJ Addict
Original poster
Joined
Nov 6, 2019
Messages
1,854
Location
PA
Is there such a thing, or is it just keep it the same on each end and as small an angle as possible?

I ask because with my 2.5" lift and 1" TC drop my driveshaft is real close to a straight line. Very little angle at either end. Is that great, or do you actually want a bit of angle? I dropped the TC initially because I still had a stock track bar and the axle was a bit off center, which combined with the lift caused some vibes. Now I do have the axle centered. It looks like the lift, with stock control arms, tilted the rear diff up slightly. Then with the TC drop the shaft lines up just about straight. I also now have adjustable control arms, so I could rotate the diff back down level, and raise the TC a bit as well, for I'm guessing 5 degrees or so at the U joints.
 
If you have a slip yoke, conventional driveshaft setup, you want the TCase yoke and pinion to be as parallel as possible.
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X2 to what @JMT said. There isn't going to be an exact number, but you want it as parallel as possible to the transmission.