Back Space Question - Team Camaro Tech
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post #1 of 4 (permalink) Old Dec 27th, 09, 07:08 PM Thread Starter
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Mike
 
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Location: Chicago, IL
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Back Space Question

I put an 8.5 10 bolt 373 posi out of a 2nd Gen Camaro (the spring perches were modified to fit 1st Gen) in my 69. I think the 2nd Gen rear end is 1" longer in total, is that right?

I have Rally 15x7 FW with 4.25" back spacing wheels all around. Does anyone know if there was a factory 15x7 with 4.5" or more back space to place the wheels closer to stock?

Many Thanks!!

Mike
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post #2 of 4 (permalink) Old Dec 30th, 09, 12:20 PM Thread Starter
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Mike
 
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Re: Back Space Question

Ok, either it was a stupid question or a though one, but what about this.
Would Torque Thurst II's, 17"x 8" with a 4" back space work on the front of an 17" x 8" with a 4.75" back space on the back of a 1969? Any thoughts?

Thanks!!!
Mike
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post #3 of 4 (permalink) Old Dec 30th, 09, 01:05 PM
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Mitchell
 
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Re: Back Space Question

Hey Mike,
Not sure on the rear end widths, but if the new rear end is a total of 1 inch wider (axle flange to axle flange) and it is centered in the car!!--you should need 1/2 in more backspacing in your wheels for them to be in the same place as before!!
I would be careful about the second post, because your front wheels (with less bs) would look deeper than your rears!!!! Thats why I would run a 7" on front with 4-4.5 bs, and then the 8" on rear with 4.75bs. It will work fine--we do it daily!!
I used to have a link to factory rear end widths-but I can't find it. Do some poking around on the net and research the widths!!
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post #4 of 4 (permalink) Old Dec 30th, 09, 01:44 PM
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Re: Back Space Question

Here... make it simple.
Measure the old Vs. new rear...New 1" longer ? then you'll need 1/2" more BS per side.

Or ...
measure from the flange to the inner wheel well and then from the flange to the wheel well lip and report back with your measurements.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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