Just put on some 295's in the rear from the 275's i had. They just barely fit. Idk whats wrong. They are replica zo6's and f1 supercar tires.

I pounded out the left side wheel well and the right side is almost as bad. I going to do the passenger side tonight but man, I really need some room in there. I think i need a sawzaw and really cut out lots of material.

They hit in the front of wheel well right above the control arm. Close to where the control arms mounts to the body.

Anyone had this issue?
Solutions?

 

Wrong Offset

 

how do i fix it? Or is that not possible?

 

I agree.........I run the same size with no problem.

 

Sounds like they need to be moved outward, away from the inner fender liners. What is the width and offset of the rear wheels?

 

rims are 18x10.5
Tires 295/35/18 f1 supercars. Not sure about the offset. They are zo6 replica rims. A buddy had them on his 99 vette.
Fronts- 17x8.5
265/40/17
same tires

 

anyone???

 

What is your question?

To repeat - sounds like they sit too deep in the wheel wells. Without knowing the exact offset, no one can give you an exact answer. Corvette wheels generally have larger offsets than F-Body wheels, putting them deeper. "Spacers" might be needed.

 

ya, they are corvette rims. I know i would want to be sure but how big of spacers do i need? (for corvette rims to fit a f body properly)

 

No one can answer that question, unless you tell us the offset of the wheels.

If you can't find the offset, pull a wheel off and place it face down on the ground. Put a straight edge across the back of the rim, resting on the outside edges of the wheel (not touching the tire). Measure straight down, from the bottom of the straight edge to the face of the hub mounting surface. That is the "backspace" of the wheel. As the backspace approaches 8", you run into problems with the inside edge of the tires rubbing on the inner fender liner.

If you can tell us the backspace, we could suggest how much the wheel needs to be moved outward, to clear the inner fender. But move it too much, and the outside edge of the tire will be under the fender lip.

You are looking at the wheels and where they rub. When you unbolt them, move them outwards until the tires no longer interfere with the inner fenders. The amount you move them will be the spacer you need. Problem is, a "spacer" of more than 5/16" is not recommended, and you aren't likely to find an "adapter" that is less than 1/2" thick, if even that thin.

 

So just figuretively speaking how big of spacers would i need to make a vette rim fit an f body. I understand there not all the same, but roughly??

 

Dude, check it out:

No-one can tell you the ideal spacer size unless you measure your backspace. That said; however wide the spacer is is how far out the tire and wheel will move, giving you that exact amout more space inside. So, go look at your car. -How far out can you move your wheel and tire without it sticking out of the wheel well? Prob. around 1/2 inch or so. If you go to your local auto parts store, you can usually get wheel spacers for about $15 a pair. They generally come in 1/16" difference between sizes. I'd suggest starting with a 1/4" or 5/16." If you go past 5/16" to 3/8", you will start losing engagement room on your wheel lugs. You can put on 3/8", or even up to 7/16" like I have in the past, but you should put on longer wheel studs for safety's sake if you do.

Now, say you put on 1/4" spacers. That means each side will have 1/4" more room between the tire and where it is rubbing than it does now. Is that enough room to stop it from rubbing? Probably, but you may have to test it out to see, and may end up trying a different size. Again, they only cost about $15 a pair. Additionally, now that you put in your 1/4" spacer, the wheels and tires will sit 1/4" further out in the wheel well. -Just make sure they are not sticking out to far.

The reason this is an issue, is because wheels made for different vehicles have different offsets. For example, a 17x9 wheel made for a F-body may have a 50mm offset, where-as the same wheel for a Corvette may have a 56mm offset, due to the diferent widths of the rear end. What that means, is if you put the Corvette wheel on your car, it will sit 6mm closer to the inside. Actual "take-off" wheels will have whatever the real Corvette offset is, because they are OEM wheels. What is often sold as a "takeoff" wheel is usually a reproduction and may actually have a f-body offset.

Does that make sense?

-Justin

 

Excellent explanation......................in English!

 

ya. I know you guys couldnt tell me what size spacer i would neeed since i couldnt find out the offset. But you did answer my question about what size *roughly* i should start with.
I'll pick up a set of 1/4 and try them.
Thanks

 

Why waste time/energy/money on something that may or may not work?????? Wouldn't it be easier to remove the wheel, measure, and get the correct information from persons here trying to help????

But its your decision.......