Tire Help

[Yankee fan]

any Ideas on tire fitment for a 1990 mustang gt going with 17x8 upfront and 17x9 rear

 

[Mustang5L5]

I run 235/45/17 up front on a 17x8. No issues at all with rub

 

[RaggedGT]

275's seem to be popular on the rear,as for the fronts,not sure,


Edit: Mike covered the front lol

 

[Mustang5L5]

You can get a 245/45/17 up front, but a tad easier on the 91+ cars...especially LX.

I have run a 245 up front on mine. The extra GT body work on the 87-90 withsmaller fenders tends to get rub

 

[imp]

In '94, 245-45-17s were offered as optional. They cleared the SN95 no problem. Earlier Fox, I'm not sure, but I don't THINK there was that much difference between Fox and SN95 clearances. imp

 

[Steel1]

On my 93GT I run:
Front- 235/45/17
Rear- 245/40/17
No rubbing issues and quads removed.

 

[Sparky714]

You can get a 245/45/17 up front, but a tad easier on the 91+ cars...especially LX.

I have run a 245 up front on mine. The extra GT body work on the 87-90 with smaller fenders tends to get rub

I have 245/45/17 on 8" wheels on the front of my '89 LX with lowering springs. Had a small rub on the spats. A little work with a cutoff wheel and a dremel and that fixed it. I also have 275/40/17's on the back. No quads and no rub.

 

[BMW Rider]

I chose the same rim sizes for my car and decided to run 235/45-17 on the front and 255/40-17 at the rear. While it would be possible to fit one size larger on each, these tires are the optimal width for the wheels. The next size larger tires are still an acceptable fit on the rim width as per the tire manufacturers and would likely fit under the car just fine also. My reason for choosing the optimal tire size for the rims is to minimize sidewall roll. The wider tires would be slightly too wide for the wheels and thus would have slightly pulled in sidewalls at the bead and a slightly rounded tread face. This has the effect of causing less stability for handling as the tire will have more tendency to flex and roll side to side. I plan to use my car for autocross and occasional track days as well as street driving, so maximizing the handling is more important to me than the appearance of a fatter tire on the car. The minimal gain in contact area would be negated by the sidewall roll so the smaller tire should actually have better overall performance. I also chose to go with extreme performance tires with a 200 treadwear rating to maximize traction and handling, even in the narrower sizes they will out perform a wider tire with a less aggressive compound.

The bottom line is that you need to decide how you want the car to perform and look, and which factor is most important to you.

 

[Dan02gt]

I run Nitto G2s in 245/45x17 up frond on a 8" wheel and 275/40x17 out back on a 9" wheel. I have no rubbing at all and did not mess with the quads.

 

[Mustang5L5]

My rear size is 255/45/17 on 17x8. SN95 offset disks, still have my quads, and plenty of space

 

[Jersey Joe]

I have 17x9 wheels all around, 245/45/17 front and 275/40/17 rear, still have the quads but now and again the rear rubs the fender lip on the big bumps, front rubs at full lock. Actually have been thinking about going with a 8" front wheel and a 10" out back.