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View Full Version : Best way to go to 31 spline in a Mach 1



Black92LX
05-17-2008, 03:20 PM
Buddy is wanting to go to the 31 spline axles in his Mach 1.

What's the most economical way of doing this.
I understand the explorer 8.8 is already 31 spline so one could just get one of those put in new axles and have the rear rebuilt if wanting a different gear ratio correct??

If so what year explorer rear end would one need to find? I am guessing pre 2002 since that's when they went to the IRS set up.