Thread: 06 GTO rear end
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  #8  
Old 02-01-2012, 01:11 AM
wrp wrp is offline
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Join Date: Jan 2012
Posts: 17
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I'm running Holeshots 15 by 9 with a 6 7/8 backspacing. We are increasing that to an 8.8 inch backspace on an 11 by 15.

This was with the OEM IRS









These are with the Ford Nine Inch IRS





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