Aftermarket tire help.
6/14/17, 01:08 PM
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Aftermarket tire help.
My gf purchased an 1999 anniversary edition pony convertible. Unfortunately it came with aftermarket tires & rims. The fronts are 245/45R17 & the rears are 285/40R17. Not only are they different sizes but they're also different brands, tread patterns & speed ratings, which I'm told is a big no no. These tires need to be replaced for state inspection so I have a good excuse to get all matching brand, model & speed rating tires for this car. I have a few questions regarding what these rims will allow for? Can I get away with substituting 255/45R17 for the 285/40R17 that are currently on the rear? Likewise would changing the fronts to a 275/40R17 from the current 245/45R17 be possible without changing the current rims? Also what psi should these tires be set at? Thank you in advance for your help.
6/14/17, 03:56 PM
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Unfortunately I don't. I haven't been able to find any markings in plan view but I haven't taken any of the rims off of the car. They have the mustang emblem in the center & I've heard a couple of people refer to them as cobra rims but I don't know anything more than that.
Last edited by The Sheriff; 6/14/17 at 03:59 PM. Reason: Amendment