Need Advice, Suggestions

Not one of you in particular OMR, but all the diagnosing and then the double work and the driveline shop calling things what they aren't, johnmucci you have a single driveshaft that is a detroit ball style because you have a non slip yoke trans , you do not have a 2 pc shaft. What you want is for them to make it a stub slip style adding the stub slip to your existing shaft with a flange, still a regular 1pc driveshaft


This poor guy is getting killed.
Vibrations are checked with the car/truck complete, the minute you remove one piece you CHANGE everything, removing any part can simply be removing the part that is transferring it or moving it, and you'll be like my latest customer that another shop had him change his front and rear diff, then the t-case, then the rzeppa that i mentioned wasn't bad, then the shop said i changed the wrong one, then i told him i checked both and said the rear rzeppa wasn't bad and the front is fine, so then i said bring the entire car since i figured i was dealing with parts changers, then i found out that the asshat non mechanics haven't a clue and should be washing dishes and his front drive axle is the issue, but removing the front shaft removed the part that transferred the noise and without it in the vehicle it also put no load on the front axle keeping the noise he was originally looking for from showing up.

motors vibrate in nuetral, park, in gear and on engine stands if they have a problem and will not have a issue at only 20 to 40 mph.
Either the shaft is not balanced or not balanced correctly, and as for the pin angle, if it is at 14 degrees then faster than 40 mph you should want to D I E, at 14 degrees off that should be deadly