I have just picked up some prodrive GC07C 7.5" +48 Front, 8.5" +54 Rear and looking to throw some RA-1's on there with an approx 1.2" drop and -2 camber front and -2.5 rear.

Which ra1's would work in the front?:
Tire Size 1/32" O.D. SW SLR RV Rim Widths
235/45ZR17 7.5 25.2 9.3 11.7 518 8 7.5-9.0
205/40ZR17 8 23.4 8.5 11 551 7.5 7.0-8.0 (reinforced)
235/40ZR17 8 24.4 9.6 11.4 529 8.5 8.0-9.5

I would be leaning towards the 40 sidewall but would the 235 rub?


Which ra1's would work in the rear?
Tire Size 1/32" O.D. SW SLR RV Rim Widths
235/40ZR17 8 24.4 9.6 11.4 529 8.5 8.0-9.5
255/40ZR17 8 25.1 10.4 11.7 515 9 8.5-10.0

Once again I am leaning towards the 255 but it should work without a problem I believe.

 

You'd probably have better luck in the tire forum. I'm guessing most the responses here would be, "should fit....but if it does rub bust out the baseball bat and start pounding until it doesn't. That's what I did.

 

there isn't much a baseball bat can't fix.

 

 

I have the 235/40/17 on my stock fronts but I'm at stock height too...they don't rub at all...and I really don't see them rubbing if you have your front lowered about an inch...

If I were you though, I would go 235/45/17 for your 7.5" because the 40 is squeezed on...I didn't feel safe at all on the track...

 

235-45-17 didn't work for me. I'm on swift mach springs about an inch lowered.