azbanks

I have been running 295/30 R18 Michelin SP2's on the rear. They came off a 2002 996 turbo. I've got a deal on some 275/35 R18 SP2's. Will the 275's fit?

333pg333

Should be ok but you need to check the outside diameter of the 35 profiles. It might be a little bit taller. I think you have to retain a pretty close OD on your front and rear tyres for the ABS to work. What are you running on the front?

azbanks

It's an 86 so no ABS.

235/40 R18

333pg333

You should be able to get the ODs from TireRack or somewhere. This will give you enough to go on for fitting.

JohnKoaWood

8mm difference in sidewall height, or roughly 1 (.96) inch difference in circumference.. (unless my math is funked up, its been a while)

buy the tires... GPS verify your speedometer...

Drive it like you stole it!