255's on 17's: will they rub in front?
- Thread starter Mustank
- Start date
I have 17X8 +30mm offset wheels with 5.72 inches of backspacing on my 91 notch. They have 245-45-17's on there, and they rub the back of the K-frame on a full turn.
The Cobra style wheels a 17X8.5 with a +26mm offset and 5.72 inches of backspacing. Even though the backspacing is the same the wheel will sit outward +4mm because 30mm offset vs. 26mm offset. This means the wheel and tire will be 4mm further from the suspension. This will give you a little bit more clearance than what I have.
The Cobra style wheels a 17X8.5 with a +26mm offset and 5.72 inches of backspacing. Even though the backspacing is the same the wheel will sit outward +4mm because 30mm offset vs. 26mm offset. This means the wheel and tire will be 4mm further from the suspension. This will give you a little bit more clearance than what I have.
allballsmustang
Member
jhonda
Member
I have the same setup 17'' 93 cobra style wheels with 255 40 17. I get a little bit of rubbing at full turn on uneven pavement, I also have the eibach prokit.
I'm not sure if they are a 9"wheel anyone know....I got them from americanmuscle.com
I'm not sure if they are a 9"wheel anyone know....I got them from americanmuscle.com
Thanks guys. I really wanted to keep my tires the same size on all 4 corners so I could rotate them - and I was looking for a compromise. I definitely don't want anything narrower than 255 on the back.....I guess I'll just suck it up and go with 245/40's on the front and 265/40's on the back.
So I guess the next question is: Will I have to roll the fenders and/or flip the quad shocks to fit 265/40 17's in the back? I shouldn't, right?
So I guess the next question is: Will I have to roll the fenders and/or flip the quad shocks to fit 265/40 17's in the back? I shouldn't, right?
Depends. 265 on an 8" wheel, maybe. 265's on a 9" wheel I would say yes. I can tell you tonight. I'm putting the quads on my 91 with 245-45's on a 17X8 wheel. I'll take a measurement for you.
QUICK91LX
Founding Member
I have a full dugan racing suspension setup and my car is loww and the previous owner put 255/45/17's on it which are too wide and tall, but they only rub my front fender extension my car is an 89. With the way my car is set up, i think that if i had 91+ fenders/extensions I would be fine. I am still going to go to 255/40 or a 245/45
MAC'n89Blckstng
Active Member
I ran 255/40s on a 9 inch wheel up front and never had a problem. I now have them on an 8 inch wheel an still no problems.
trbkrb
Founding Member
I'm with MAC, I had 255/40/17s on 17x8 wheels and had very little rubbing on the front. I have more rubbing with the 245/45/17s I have now. The 255s are actually shorter tires, and therefore have less opportunity to rub the fender wells. The A arm rubbing I've had is always with the wheel turned all the way, and additional rack spacers in the inner tie rod boots solves that problem.
cardudeusa
Founding Member
I have 255s up front on a 9 inch rim they dont rub except the rim on the control arm but when I went from 245 to 255 the car wanders a lot more now and has baddd bump steer.
RARE NOTCH
Member
Ok i am going to put 10th anv cobra wheels on my notch when i do
a 5lug over the winter. My car is lowered with b'springs so what size
tire should i run?
a 5lug over the winter. My car is lowered with b'springs so what size
tire should i run?
MAC'n89Blckstng
Active Member
Tire size shouldn't affect bumpsteer at all. Maybe you need an alignment?
On a 9 inch wheel on a fox, 255/40's look the best and 275's look the best on the back in my opinion.
On a 9 inch wheel on a fox, 255/40's look the best and 275's look the best on the back in my opinion.
cardudeusa
Founding Member
Could be but I've heard other people say the same thing and it was fine until I put those on.
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