Quote Originally Posted by John S View Post
Nip the blocks up in the vise and hammer them back onto the rail.

Failing that do a search on here for a post by Jonathan on Torsional Stiffness of Round Rails. If I remember right it ran to about 6 pages, print this out and cram it into the ball bushings.
Failing that tell him to throw some sausages & burgers on the bed and light Jonathans "Stiffy" papers sit back watching olympics and learn how to waste even bigger money. .