EngineMasters Machine Shop Owner
If the Driveline Diameter is too small for the Length of the Shaft and 500HP, if its over 48" x .065" tubing(u-joint to u-joint) should have 3"dia. x .083" tubing up to 48" and tubing 3 1/2" x .083" DOM tubing to prevent from winding up, loosing the centerline from pinion yoke angle to trans yoke angle will bind u-joints. Should have 1 1/2° to 2 1/2° interference angle between trans and pinion for u-joints to work properly. Over 53" length should have 4" diameter tubing. If 500HP+ or go with a carbon fiber driveshaft and back off the brakes.