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Author Topic: 15" Cragar SS  (Read 3614 times)
Tinindian6702
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« on: December 31, 2009, 08:09:55 AM »

I was thinking of adding 15X8 Cragar SS RIMS ON MY 80 and looking at the jegs catalog.  Would they be the standard 4 1-2 inch backspacing???   Whats the deal with the reverse offset??  Thanks   Tire size recommendations would be appreciated.  Thanks
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Mike,
2002 TRANS AM WS6 Convertible
1980 TRANS AM Pace Car (SOLD)
1978 Esprit Redbird
1967 Firebird 400 Convertible
Grand73Am
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« Reply #1 on: December 31, 2009, 09:03:50 AM »

Well, original 15x8 snowflakes have 4.5" backspacing, so getting Cragars with 4.5" backspacing would be good so they would fit like the original wheels do. And the most popular size tire on 15x8's has been 255-60-15's. I looked at the backspacing specs on the Cragars and it appears that 4.25" is as close as they have. That would probably be okay, since I don't think 1/4" difference would cause a problem.

Reverse offset means that more of the wheel sticks outward than normal, so the wheel has a deeper look. If you look at the "Rear spacing" spec on a Reverse offset wheel, you'll see the backspacing is only 2.5", so that means more wheel is to the outside of the wheel center. So, since the wheel sticks out further, you could have tire interference with the body wheel opening lips.
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Steve F.
Tinindian6702
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« Reply #2 on: December 31, 2009, 02:30:50 PM »

Thanks for the info.  Someone recommended 275/60/15 in the rear and 255/60/15 on the front.  Anyone run ths combo with no rubbing???
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Mike,
2002 TRANS AM WS6 Convertible
1980 TRANS AM Pace Car (SOLD)
1978 Esprit Redbird
1967 Firebird 400 Convertible
gold79ta
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« Reply #3 on: December 31, 2009, 02:37:06 PM »

I would go with a skinnier rim and tire in the front.
On another T/A I used to own I had 15x8 and 15x6 cragars with 245/60/15 aand 235/60/15's and loved the stance
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Tinindian6702
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« Reply #4 on: January 03, 2010, 05:52:59 PM »

Thanks gold.  I liked the look of the wide tires all around.  Anyone use the 255-60-15 in front with no rubbing???   Also the 275-60-15 in rear? Thanks
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Mike,
2002 TRANS AM WS6 Convertible
1980 TRANS AM Pace Car (SOLD)
1978 Esprit Redbird
1967 Firebird 400 Convertible
Macho T/A 154
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« Reply #5 on: January 16, 2010, 07:28:08 PM »

I have 15x8 in the front and 15x8 with reverse offset on the rear.

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Tinindian6702
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« Reply #6 on: January 17, 2010, 01:40:56 PM »

What are you doing about the rear suspension.  Tires don't hit the quarters?  What shocks??   Thanks for posting looks good.
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Mike,
2002 TRANS AM WS6 Convertible
1980 TRANS AM Pace Car (SOLD)
1978 Esprit Redbird
1967 Firebird 400 Convertible
SexyTransAm
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« Reply #7 on: January 17, 2010, 02:37:09 PM »

i had 255/60 on a 8in wheel in the front for some time and they didnt rub(see sig pic. and thats lowered like 3.5in). and the 275/60s will look killer in the rear. i had some 275/50s at one point and they were a lil short for me.
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NOT A TA
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« Reply #8 on: January 17, 2010, 06:13:20 PM »

On my 70 I had 255 60 15's with 4.5" backspacing Rally IIs and they hit the inner fenderwells in the front toward the outside with stock suspension. It was worse after I lowered the car. You can see in the pic below how they're out toward the edge of the wheelwell and make the car "taller"

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John Paige
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