shim rotation math
has anyone done the math on shim rotation with 2" drop shackles? I just put on the Belltech shackles and went ahead and rotated the shims while I was at it. Truck rides fine, but being the anal bastard that I am, I want to know exactly what shim should be used to restore the factory angle. My rough calculation is that the drive shaft angle changes 2 deg with the longer shackles, so rotating the 2 deg shim (which gives a 4 deg change) seems to be too much. Any words of wisdom out there?
/Phil
2003 H-D Screw #141 - 387HP/485TQ