So Ive seen some info on this,

I would like to know if 315/35/17 would fit on my 93 vert with out issues?

I beleive I have the 9.5" wide wheel with a 8.5 up front.
is this correct for a 40th convertable?

thanks,
Greg

 

I am using that size with 11 inch rims.

 

The widest that's "recommended" by most manufactures for a 9.5" wheel is a 285.

 

For the cars that came from the factory with a 315/35-17 tire, they used an 11" wheel.
You really don't want to put that size tire on a 9.5" rim.

Factory Sizes:

255/45-17 front tire used a 8.5" rim
285/40-17 rear tire used a 9.5" rim
315/35-17 rear tire used a 11" rim

Some came with 275/40-17 tires all around on a 9.5" rim

 

Short answer is no.

The GS rears use 11 inch rims but remember they needed a false fender flare to make the tire look correct.

My Fikse's have a very tight offset (requires a bit of modification in the fender well that allows the 17x11 rim to fit under the normal lt1 rear body, so I run rear 315s, but would never do it on a GS 17x11 rear wheel or certainly a 9.5 inch wide rim.

The Fikse's are now being manufactured in Canada and would work but that may be more than you want to spend.

 

Question answered,

thanks guys. Was just looking for a tad more agressive look.

thanks again

 

I have a '95 with period correct Zr1 rims and I run 315/35/17 in back and 285/40/17 up front. And I do not have any problems.

 

It would be helpful if you could post a image shot from the rear to show the OP how the ZR1 rims look with the larger tire in the rear. Not everyone will like the protusion.

Here is mine.


These rims have about 10-12 mm less offset than the ZR1 to get the 315 size tire completely under the body. Remember the ZR1 had a wider rear body section than the LT1 specifically to cover the wider tire. The Grand Sport made due with a LT1 body but with those eyebrow flares to completely cover the tire and the GS 17x11 wheel also had a different offset to minimize protrusion from the LT1 body.

By the way, the protrusion might be just what the OP is looking for to add an "aggressive" look. We have the same problem on the early F Bodies, but for some reason the protruding tire does add the aggressive look but I can't seem to like it as much in the much better looking Y body.

Heck I even ran 17x11 ZR1 rims with 315 Kumhos on my 93 Camaro on all 4 wheels back when it was new. Now that was aggressive. I was running 1 degree of neg camber up front and the front tires easily were 1 inch outside the body work and canted inward at the top due to the camber. Add that look to the fact that mine was one of the first Fourth gen Camaros to hit the streets and we literally would stop traffic as we drove it around.

But do make sure you see pictures of the result before you spend the money.

Perry

 

Many have run 315s on 9.5" rims, but as others have mentioned it isn't recommended by tire manufacturers. That being said, all 315s are not created equall. It's been very well established that some 315s are much more narrow than others. Sumitomos are one that comes to mind and they are noticeably smaller than other manufacturers of the same size. I've seen 315 Sumitomos mounted on 9.5" rims and they appeared to fit well with very little sidewall bulge. So optimally I'd say you need an 11" rim for a 315 tire, but if you went with a Sumi, I think you'd be fine.