WHAT SIZE TIRE

[95vert354]

I have the 18x8.5 alloy bullets with the stock BFG g-force 235/50/18. How big of a tire can I put on the rear with the stock 8.5 inch rim. I don't want a real low profile look but I want to go as wide as I can. I have 275/40/ 17 on 9" rims on my '95, will a 275/40/18 fit on 8.5's?

 

[Sparty92]

I've heard you can get a 275 on the stock wheel. I'm not sure of the width on the stock 17" bullitt wheel...but I was going to go with 255s just to be safe. The local tire shops all say that a 255 is not a problem for my wheel.

 

[kooldawg6]

I would say a 275/40-18 is too wide for the 8.5" wheel. That is the size tire they run on the 10" Roush wheels. I have a 255/45-18 on my 8.5" wheel and it is perfect. You may be able to get a 265 safely on there if it's not too low of a profile tire. 275 on the 8.5" would work if it's short time use like at the drag strip, but I wouldn't recommend it for daily driving that sees various cornering speeds as it could cause unwanted side wall movement under load. .8.5"=215mm so the 275=10.8". That will be 1.4" of sidewall bulge on each side of the wheel.I don't have nearly that much sidewall bulge with the 285/50 on my 10" wheel and that looks like enough.

 

[Towelly]

275 is way to wide for sure. I run 275/40's on my 9" wide wheels and they have some overlap even still.

I think the largest to run on the 8.5 wheels would be 255 or 265 and 265 would be pushing it still.

 

[NastyStang113]

I've got 255s on my front and they fit easily. 265s should fit fine and 275s should fit but will probably wear quicker.

 

[95vert354]

What about the 255/45/18 goodyear f1 on the GT-500. How is the traction and wear on them? Can anybody recomend a back tire that will fit and hook halfway decent? Pics? Thanks for your help.

 

[kooldawg6]

Not the Goodyear, but here is the 255/45-18 Nitto 555NT on 8.5" wheel.