Thread: Straight Axle or IRS & Which One
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Old 12-22-2006, 04:40 PM
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What I'm doing for my 8.8 IRS build is using the 31 spline differential from a 2004 Mustang SVT. Standard 8.8 is 28 spline. Ford made the switch for their higher horsepower Mustang. Custom axles have to made but the are available from a couple manufacturers like Dutchman.
Larry
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