Simon...I’ve always been intrigued just how you alter the castor angle unless the body is off the chassis and you can remount it. Brute force?
You don’t need to remove the body to remount (or even replace) the front cross head
You don’t need much force to move anything on a Morgan chassis, although to correct the top kingpin lugs when resetting the camber you need to heat up the fittings or the can crack
It would help if the factory cross heads were square and true to start with
I’ve seen them up to 8mm out of true
The stub axles have similar variations so the scrub axis or offset can vary wildly side to side
(Scrub offset is the difference between the centre line of the tyre where it meets the ground and a theoretical line extended along the axis of the kingpin to the ground
Traditionally for light accurate steering the scrub should be minimised, however with wider tyres and more complicated modern suspension kinematics many manufacturers use scrub as another tool in the repertoire to improve handling)
Simon @ SiFab .co.uk
