Castor corrected arms will make any vibration problem worse because they move the diff pinion angle back towards the horizontal. The purpose of castor correction is to overcome the lack of steering self-centering introduced by a suspension lift.
I'm pretty sure that all the OP needs is a wide angle prop. That worked for me with a 2" lift anyway.
Nope vibrated with the old worn prop and is even worse with a brand new one.
were props phased correctly for use on front,and wide angle props only prevent binding not vibration
were props phased correctly for use on front,and wide angle props only prevent binding not vibration
But I thought Double Cardan props were supposed to fix this with the extra joint?
As on my other thread the new prop is phased correctly, the Diff end leading the transfer box end by 2 splines.
However my old prop was phased with the transfer box end leading the diff end by two splines (so opposite) which makes me think someone played with the phasing before to stop the vibration when they raised it.
or they did not pay attention to what they were doing