Originally Posted by RWENUTS
Put the base of the angle finder on the flat part of the yoke where you see the cup of the u-joint. Put the flat part of the yoke down. Put the rearend of the car up on some blocks under the tires so the suspension is loaded. After it's on the blocks bounce it so it's settled before measuring. Block the front tires so it won't roll away.
In this link posts 11 and 19 show where to put the angle finder.
How much is too much stock driveshaft angle - Jeep Wrangler Forum
Just what I needed! Thanks!