The axles out of a 7.5 Mustang rear end WILL fit the 8.8 and it doesn't matter which side, because they are the same length. Stock 7.5's and 8.8's use the same 28 spline axles. When I put the 8.8 FRPP rear end in my car, I used the axles out of the stock 7.5 that was in the car.
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1985 Mustang GT
'85 GT 13.20 @ 105.8 / '72 Mach1
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