[Red02GT]

I bought my car with 2003 cobra wheels which I like But after reading a couple threads I realize that a 245/45/17 should not be monted on a 17x9 rim I read through american muscle which said it recommends a 275/40/17 The tires are close to new and I have purchased 315/35/17 rears how much harm is there in running the fronts the way they are I have 275/40 on the rear which i can put up front ,but the rims have some minor damage I cant stand , the question is would I be better off switching the rear 275 to the front rims or run it the way it is for now . I have access to a tire machine and balancer for free?

[FULLSCALE]

I bought my car with 17x9s all the way around with 245/45ZR17 tires on the front and 275/40ZR17 on the rear. I haven't had any issues yet, but I will be putting 275s all the way around when they need to be changed. Looking at them you can tell they're just not quite wide enough for the rims though.

[FULLSCALE]

In the pictures in my profile you can see there is quite a bit of a difference front and rear between the 245s and 275s on a 9" rim.

[Red02GT]

thats the set up I have now, when I read the tire recommedations at american muscle the reccomend the 275/40 if you go with the smaller size the tire specs say you could break the bead in a corner I just bought the car and dont need that . I have the 315/35 in my cellar on 17x10.5 so all i have to do is switch tires on the front rims

[Red02GT]

does anyone know the size (height) difference between a 245/45/17 and a 315/35/17 dont wanna looked moonjacked