Thread: Is anyone running these tires (255/45/18)?

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  1. #1 Is anyone running these tires (255/45/18)? 
    SE Level Member fatride99's Avatar
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    Ok, i bought a set of (4) tires, which are 255/45/18. I have a 2001 Pontiac Grand Prix GTP. My rims are 18 x 7 1/2 (i believe) and have an offset of appx. 45mm. If anyone that has a grand prix or a w-body is running these, let me know. I want to make sure that they fit before i put them on the rims.

    Jason
    My Ride - '01 GTP Blue/Black (2.dr)
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  2. #2 Re: Is anyone running these tires (255/45/18)? 
    Donating Users GeddyLee's Avatar
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    I am running 245/45/18's myself. You can probably run them, but if your car is lowered, you are run a good chance of hitting the fender. I think you should clear the inside towards the struts ok with those.

    I know some people have run 9" wide rims and have been ok without rubbing and seeing how your rims are 7 1/2" wide that wont be a problem. But do you run the problem of the tire being to big for the rim. The max I did at size you have was 245.

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
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    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  3. #3 Re: Is anyone running these tires (255/45/18)? 
    SE Level Member fatride99's Avatar
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    I have KYB AGX struts and SLP lowering springs on my car. Right now, my suspension is pretty stiff. I have approx. 1" or so gap on the front and back. I'll find out this weekend if they'll fit, as i'm gonna get 1 tire mounted and fit it on the front, then the back to see if they'll work.
    My Ride - '01 GTP Blue/Black (2.dr)
    1949 Mercury Coupe
    R.I.P. - '01 GT Blue/Black
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  4. #4 Re: Is anyone running these tires (255/45/18)? 
     

  5. #5 Re: Is anyone running these tires (255/45/18)? 
    I live here. GTPJOE90's Avatar
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    word
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  6. #6 Re: Is anyone running these tires (255/45/18)? 
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    they should work, but you might rub the strut plate. keep an eye on that side
    i have 245/45/18's on my imp, no problems
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  7. #7 Re: Is anyone running these tires (255/45/18)? 
    SE Level Member fatride99's Avatar
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    Well, i got the rims and tires on the car. I sometimes get a rub, but nothing serious. No interference w/ suspsension and no rubbing on the body. I'm thinking inner fenders may be the culprit. I've got pics and i'll post them up when i get a chance. Thanks for all the input.
    My Ride - '01 GTP Blue/Black (2.dr)
    1949 Mercury Coupe
    R.I.P. - '01 GT Blue/Black
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