I don't have the answer to the bushings query.

The body bushings look good, it's probably the propensity of metal interior which amplifies the road noise.

Current issue I'm ironing out is starter trouble.

New battery, cables and terminals look good (after I soldered in a new ring terminal for the start post) I Took the starter in for check. It checked ok. Put it back in, hoping the crappy ring terminal was the issue.

No Bueno Pedro. Same issues, which actually got worse with the new bigger battery. (More solenoid clatter plus sounds like it's slipping on the flywheel)

So, I'll drop in a new starter and hope it's a bendix issue but I suspect not.

Kudos to O'Reilly auto, they found the right starter first try.

Keep ya posted.