[dsraven]

a more accurate reading of the angles can be had by using the oil pan mounting surface. sometimes the play in the rear trans bushing can make the angle gauge lie when it is using the ujoint or the yoke. you prolly have it dialed in the way you want it now but if you need to change it later you can always use a shim under the trans mount to jack the trans end up some if needed. otherwise slice a piece out of the square tubing under the trans mount and weld it back in lower, if it is already too low.
keep plugging away man. looking good.