Stock GT rims with wider rear tire pics!

[Scotty B]

Whatever tire you choose, in the end, the rears must have the same tire diameter as stock, or your speedometer will be off

Yeah, I used the the tiresize.com site and if don't keep OEM tire sizes will change the speedometer. Go up in size (i.e. 275), keep the same profile will be faster than speedo. lower the profile, will be slower than speedo.

 

[SRV]

Yeah, I used the the tiresize.com site and if don't keep OEM tire sizes will change the speedometer. Go up in size (i.e. 275), keep the same profile will be faster than speedo. lower the profile, will be slower than speedo.

Did you check using a 30 vs 35 with the 275?

 

[Scotty B]

Did you check using a 30 vs 35 with the 275?

Yes, the 30 drops about 2 mph. the 35 adds about 2 mph. But assuming that is squared, so maybe +/- a little more.