It would have been on jacks, thus in the air.
Harry has probably hit the nail on the head as to the problem as the thread was cut and extended on standard radius rods.
However my engineer picked straight up on the problem- its the angle that have changed ( running 3odd degrees negative camber and 4 positive castor )thus stressing the radius rod.
His solution was to remove the factory mounts in the front chassis rail and rebuild some new ones in the 'correct' position and to use a rod end at the end of the radius rod. This works great and it all moves freely.
Pit Road have a similar setup but they use the standard factory mounting points.
Cheers
Dave