Fox T-Bird/Cougar Forums  

but will 265's or 275's?

honestly, i don't think a 315 will fit under the ass of a tbird.  i've got them on my ranger.  i thought he was just asking what size tire could be fit on the rim.

i had them on mine

what modification was necessary?  did you have to roll the fenders?

quads gone, rolled lips,

does anybody know how big of tires i can fit WHITHOUT modifications?

honestly, i don't think a 315 will fit under the ass of a tbird.  i've got them on my ranger.  i thought he was just asking what size tire could be fit on the rim.

People need to keep a very important fact in mind in regards to tires:

Not all tires are created equal. Rim width also plays a huge role here.

Claiming a 315 can fit is fine but the people heeding such advice need to keep in mind that tire brand becomes very important because I'll tell you right now......anybody who takes the 315 claim as the gospel is gonna be awfully pissed when they find the tire doesn't fit because one brands 315 can and will often be very different than another brands 315. A prime example....line up a Nitto 315/35-17 next to  something like a Goodyear Eagle F1 and you'll quickly see they are quite different in terms of width.......the Good Year being noticeably and measurably wider. Lots of Mustang guys on Corral throw out the "I got 315's to fit no problem on my Fox 'stang" and most of the time it's a set of Nitto's which are barely wider than a 275.

 Wheels also play a big role. A "true" 315 shouldn't be on anything narrower than 10.5" and a wider wheel will affect the overall section width of the tire which will also reduce the amount of room you have to play with.


Just something to keep in mind.