18 inch rims

x_raiderx_x · Feb 6, 2006

I am about ready to purchase a set of 18 inch Roush Chromies, and am curious if I will have any problems fitting them on a 99 Gt convertible. Will the wheels rub on the walls when I turn? Are there other issues I need to consider before purchasing these rims. I know nothing about tires, or rims for that matter. I do know my car has 17 inch O.E. Rims on it currently, and they don't rub at all. Any information will help a ton, and thanks in advance!

back_in_black · Feb 6, 2006

when you put on 18" rims the sidewalls of the tires will be smaller so the overall diameter of the wheel with the tire will be the same as your 17" wheels with tires, I hope that makes sense

trailblazr81 · Feb 6, 2006

We need more info!!! What size tire will you be using? How wide are the wheels?

If you had 245/45/17's before you can have 18's with 245/40/18 tires and be pretty close to the same. And if the 17's fit no problems then the 18's will fit no problem. But if you went with a 295/30/18 which is less than half an inch taller but 2 inches wider, you could run into some problems turning.

back_in_black · Feb 6, 2006

trailblazr81 said:
We need more info!!! What size tire will you be using? How wide are the wheels?

If you had 245/45/17's before you can have 18's with 245/40/18 tires and be pretty close to the same. And if the 17's fit no problems then the 18's will fit no problem. But if you went with a 295/30/18 which is less than half an inch taller but 2 inches wider, you could run into some problems turning.

true....:OT: I used to have a 85 gt stang with t-tops, nice car

x_raiderx_x · Feb 6, 2006

the tires for the rear will be 295x35x18, the front will be 265x35x18. The rims already come with this tire size on them. the rims are 18x9 with 5x114 offset. Let me know if these will work on my car.

BLK_ROUSH · Feb 7, 2006

Shouldn't be a problem unless you've adjusted the suspension ..... cut springs .... lowered ride height.

Really shouldn't be an issue STOCK.

trailblazr81 · Feb 7, 2006

o3redfire said:
true....:OT: I used to have a 85 gt stang with t-tops, nice car

:OT:
Oh it feals like a dog compared to my moded 2000, but it is fun to drive. The 210HP 5.0 is running strong with 210K miles. Its all stock but sounds nice with a decent exhaust, and can easilly slide rear end out coming out of corners. Its gonna be sick with 300+ HP, gears, suspension, and brakes.

18 inch rims

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