I was just wondering if 295/45/18 will fit on a 2005 GT. I bought 18x10 rims with a backspacing of 6.41 and a offset of +34mm. Any info would be great. Im looking a Nitto NT555 295/45/18. Let me know.
Should be ok. I'm running the same setup with 40mm offset and lowered 1.4". You definitely need an adjustable panhard bar to get the rear perfectly centered, though, or you will have problems.
As Dark said, they will fit with no problems I also had to get an adjustable panhard bar after lowering. The wider the tire/wheel combo, the easier it is to spot being off center!
Here was my car with the same wheel size/tire size as Dark...
Since then, I've stepped it up a notch and went for the slightly wider (by .3") and much taller (by .9") 285/50 on the same wheel! Still no fitment issues at all