15x8 rubbing, will 15x7 fit? - Team Camaro Tech
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post #1 of 13 (permalink) Old Apr 7th, 04, 06:02 AM Thread Starter
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George
 
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Hi all, I just put 15x8 rallys with 4.5"bs all the way around on my 67 'vert. The fronts rub at the rear of the wheelhousing where the bold that holds the fender on sticks out when I turn the wheel. Will a change to 15x7 rims help, or do I need to get new tires? The tires are 235/60 Eagle GT2's.

'67 convertible 210HP 327/Powerglide (not anymore!)

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post #2 of 13 (permalink) Old Apr 7th, 04, 06:59 AM
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I know 215/65/R15 on a 15x7, 4.25 backspace is safe, even if the suspension is lowered.

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post #3 of 13 (permalink) Old Apr 7th, 04, 07:20 AM
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I think you should go for the 15x7s, I tried 15x8 in the front before and they rubbed also, depends if your car is lowered or not, also the tires sound like they maybe too thick, try a 215/60/R15, or 205/65/R15

1968 Camaro RS SS<br />1966 Ford Mustang<br />"Best of both Worlds"
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post #4 of 13 (permalink) Old Apr 8th, 04, 11:21 AM
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I was running 225/60/15 on 15x7 rims and it rubbed ever so slightly on the passenger side. So I went to 205/70/15 on 15x6 rims. I wanted a little narrower look in the front anyway. I'm still running 275/60/15 on 15x8 on the back.

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post #5 of 13 (permalink) Old Apr 8th, 04, 11:51 AM
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Dan
 
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Here is a picture of the 15x7's 4.25bs, 215/65/R15 up front; 255/60/15 on a 15x8 in back.

http://home.comcast.net/~danieltonn/03.JPG

-Dan

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post #6 of 13 (permalink) Old Apr 13th, 04, 01:37 PM
 
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I did a search for backspacing and feel more confused than ever. This thread is the closest I could find to what I plan to use.

Do those 15x8s also have a 4.25 backspacing? I just ordered Rally rims from Classic Industries that have backspacing of 4.25 for the two 15x7s and the two 15x8s. So, I feel comfortable with the 15x7s but am unsure of the 15x8s. I plan on using 205/65/R15 on the 15x7 fronts and 255/60/R15 on the 15x8 rears.
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post #7 of 13 (permalink) Old Apr 14th, 04, 11:37 AM
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Dan
 
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the ones in that picture are 4.5" backspace in the rear, but 4.25" will work fine-- I use that on my slicks no problem. -Dan

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post #8 of 13 (permalink) Old Apr 14th, 04, 12:34 PM
 
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Thanks for the reply, Dan. I feel better now while I'm waiting for the new wheels to arrive.
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post #9 of 13 (permalink) Old Apr 16th, 04, 05:32 AM
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If you go with a mid 80s gear box from an f body, they have internal stops built in and stop this problem. You just can't turn around quite as sharp.

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post #10 of 13 (permalink) Old Apr 16th, 04, 11:32 AM
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What are the camber and caster settings?

There are several here that run a 245/50/16 on a 16 x 8 x 4.5. The theoretical diameter is 25.64". Yours are 26.1". On mine they rub in the same place if more than 4 - 4.5* castor is tuned in. With a bit less castor yours may fit.

If you have a shim stack on the aft upper control arm bolt you can try taking out equal amounts of shims from both sides and checking for clearance. It would be nice to keep 3*+ castor. In the end you may find that a 7" rim with the same backspace is needed.

Four years ago the car had 225/60/15's, 15 x 7 x 4.5bs, with just the smallest amount of rubbing at full lock on the aft section of the subframe. A 235 would have worked fine, just be aware not to leave the steering wheel cranked all the way over, or make the steering stops a little taller to reduce steering arc.


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post #11 of 13 (permalink) Old Apr 19th, 04, 05:50 AM
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I think your biggest problem is the backspacing. The 4.5" bs wheel is for a vette, and puts the tire in too far. a 4" or 4.25 will work better.





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post #12 of 13 (permalink) Old Apr 24th, 04, 06:42 AM
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I run a 15x8 4.5" backspace Minilite wheel with 235-60-15 Goodyear Eagle GT2s on the front of my '69. Car has been lowered 2" in the front. I use aggressive camber settings (approx. 1.5" neg.) and I used button head screws in the wheel well to gain a little more clearance. No rubbing at all.

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post #13 of 13 (permalink) Old May 4th, 04, 05:58 PM Thread Starter
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I envy you guys with the 235s that fit without rubbing. I think they look great up front, they really fill the wheelwell. I haven't given up yet though! I have the front end all torn apart now. I planned on replacing the front drums with disks, and once I had it apart, I decided to replace everything. I bought MOOG 6308 springs, KYB GR2 shocks and a '69 single caliper power disk brake set up. I think the disc rotors will move the wheels out a little and I'm sure my old springs were sagged out, maybe the new stuff will help. If not, I will go with 215/65 Radial TA's. I hate to mix-n-match front and rear tires, but Goodyear doesn't make my tires in that size in raised white lettering.
Anyone have any experience with a 215 tire on a 8"rim? I hope it is not too much rim for that size tire.
Unfortunatly, I had such a hard time getting the upper control arms off, I spread the shims all over the garage so I am going to have to start my alignment from scratch. [img]graemlins/clonk.gif[/img]

'67 convertible 210HP 327/Powerglide (not anymore!)

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