inside wear on just 1 tire. reason?

[ohhh my]

The inner side of my right rear tire is more worn out than the opposite side. What would be the first thing I should get check? Alignment? Can it also be a bearing problem? Thanks

[san rensho]

The alignment spec for these cars calls for quite a bit of negtive camber, which wears out the insides of the rears more quickly than the outsides. If its just one side, I'd start with looking at alignment.

A shop that knows what they are doing can decrease the camber to the minimum of the spec range to avoid the wear issues, but the handling may suffer.

[j.fro]

+1 on alignment.
It's normal to wear the inside edges harder than the rest of the tire, but both rears should be about equal. My guess is that your RR has a bit of toe in.

[thstone]

Going with the NASCAR setup, eh?

Seriously, previous answers are right on the money. Your RR likely has more negative camber (not toe in) than the LR.

[ohhh my]

Would inside wear(nearly bald) create a "womp womp" sound that is speed dependent and not rpm dependent as well?

[MileHighBoxster]

Originally Posted by ohhh my

Would inside wear(nearly bald) create a "womp womp" sound that is speed dependent and not rpm dependent as well?

Yes. Any tire or wheel anomaly can cause speed-relative handling issues.