The control arm bushings should be about totalled by 135k. Do you have a shimmy at 60mph? Can you feel the tires move backward on braking and release on releasing the brakes?

The wear you describe on the inside of the tire is most often caused by too little toe-in (or in fact ...toe out). If the car shows being in spec there are two alternatives. First is the alignment machine is out of calibration and second is that the control arm bushings deflect unnaturally under loading creating a toe condition not existant at rest (where it is aligned).

I see no reason for bolt kits unless the car is pulling. I also don't install bolt kits just cause I'm replacing the control arm bushings. The act of installing the bolt kits changes the camber and caster, so one has to have already read the readings before replacing the bolts to know how to place them. Unfortunately this crummy alignment method can't just be installed in the nominal position. It has to change it one way or the other.

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