My 06 LJ bar was shifting as described above.
I replaced the old bushings with new factory parts and it didn’t change a thing.
As @mrblaine said, I ordered two of these aluminum split shaft collars from McMaster and Carr to eliminate the issue.
I wish I’d installed the collars before replacing the bushings.
https://www.mcmaster.com/split-shaft-collars
Off hand I don’t remember the exact diameter I ordered but compare their prices to the JKS and make your decision.
I replaced the old bushings with new factory parts and it didn’t change a thing.
As @mrblaine said, I ordered two of these aluminum split shaft collars from McMaster and Carr to eliminate the issue.
I wish I’d installed the collars before replacing the bushings.
https://www.mcmaster.com/split-shaft-collars
Off hand I don’t remember the exact diameter I ordered but compare their prices to the JKS and make your decision.