Originally Posted By Supercuda
One other thing to consider is what RPM the drive shaft was balanced at.

You need a high speed balance.

iagree and most shops that do general driveshaft work for everything, [cars,trucks,big rigs] do NOT do high speed balancing. it seems that even though it costs a few dollars more, one might find a necessity to use a race type driveshaft company to insure the shaft is not only high speed balanced, but also to insure it has almost zero runout.
beer