Disc brake master cyl bore size.

tekslk said

I have crager ss wheels on the car I bought them used I was told there 5 inch wheels and there 15 inch Ive never had any rubbing or issues. If I drop to a 215/65/15 that may be enough difference what do you think? I don't have car here right now so I cant get the back spacing.

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5"??!!!

This is why I ask. I seriously doubt you have 235/60/15's on 15x5" rims. A 235/60/15 shouldn't be on anything narrower than a 15x6.5". Even a 215/60/15 isn't recommended for anything less than a 15x6". If you really have a 15x5 you should be running a 195.

I'd bet you probably have a 15x6 though. As far as the 215/60/15 goes, it really depends on how much interference there is. The 215 is shorter and narrower, so that helps on both fronts. A 235/60/15 is pretty tall for the front, and that can cause the interference you describe especially with a wider 73+ track. Whether or not the 215 will buy you enough room depends on the rims.