A good U joint will not make a "thunk" when rotated. They are a completely snug fit and shouldn't show any play at all.

Last edited by truckernix; 11/04/2009 2:41 AM.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!