All the forums and videos that I have read about angles on driveshafts, caster angles, shims have alot of overthinking seems to me.
For me the easiest way is to get a app that measures angles on the ole phone,,pretty darn accurate,,zero out on the frame ,for driveshaft angle,,pay attention to where your volume buttons are,,
Say you want to see what shim is need for the rear to get your attachment points for the driveshaft parallel,,what I did: with the driveshaft removed,,put the edge of the phone on one face flange or the other,,zero it out,,when you put it on the opposite flange,,that would b the size shim you need,,and accurate as heck,,
And measuring caster,,I just zeroed out on the frame and found a goo representation point on front axle,,was great,,and easiest to me,
For me the easiest way is to get a app that measures angles on the ole phone,,pretty darn accurate,,zero out on the frame ,for driveshaft angle,,pay attention to where your volume buttons are,,
Say you want to see what shim is need for the rear to get your attachment points for the driveshaft parallel,,what I did: with the driveshaft removed,,put the edge of the phone on one face flange or the other,,zero it out,,when you put it on the opposite flange,,that would b the size shim you need,,and accurate as heck,,
And measuring caster,,I just zeroed out on the frame and found a goo representation point on front axle,,was great,,and easiest to me,