F-1 GS D3 285/35/18 Goodyear

[Black 05 GTO 6 Speed]

Will these tires fit the back with fender rolling on Breyern 5 18 x 9.5?
I have stock ride height and plan on leaving it stock.

I see lots of 275/35/18, but I would like to get the extra 1/2 inch if I can.

Do the Goodyears run big or small for there size?

Thanks

[Duckman]

I have 245/45/17s on stock rims...and they do appear wider. Goodyears generally are wider

[dci67]

The beyerns don't have the most favorable offset at only +45. Most people with +45 18x9/9.5 wheels seem to have had a hard time fitting 275's in the back. It worked, but with extreme rolling or grinding of the fenders.

I have been checking this out for a while as I am conisdering the same wheels. It seems to wedge a 285 back there you would need more like +50 or +52 offset.

But every car is different and you may be able to get it to work, however I would say it is a 50/50 shot at best of it working.

[1stGOAT]

I have those tires (275/35/18) on a 9in rim and even with exact offset it is likely they(285'S on a 9.5) would not fit. I had to trim my fenders to clear on the outside and there is still only the width of my index finger left between rim and shock. I would stay away from that combo. A 19in rim will give you more clearance and you can go to a 10in rim in back if you have the right offset. you get more clearance on the inside because the top of the shock leans in toward center of the car. Of course you will need a very specific offset to center the wheel between the shock and the fender but it can be done. The guys running CCW custom wheels have done it.

[chrisgtoltd.]

It seems like i saw a thread a while back where someone had 285 30 18 not shure what type of tires or wheels