If you are out of adjustment on the caster on the left, that is all you can do. Does it still drift? I am surprised you got .6 deg out of the caster with no change in camber. Should have made a couple tenths anyway.

If the drift is still there and bothers you, the alternative is to either fix your basic problem or finess it by increasing the length of the right side rod.

Your original problem of too little camber is likely due to worn bushings on either the lower control arm forward bushing or the upper control arm. You probably should look at solving that problem. A worn ball joint might also cause the problem.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician