Vintage Mustang Forums - View Single Post - Swap a 8" to a 9" rear axle
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post #14 of (permalink) Old 07-10-2019, 06:49 PM
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Join Date: Oct 2001
Location: Charlotte, NC
Posts: 795
If you can still find them, the 1957 Ford 9” rear end fits the 64-66 Mustang. The width is the same and thebperches are in the same location. Also, the late 70’s Lincoln Versailles 9” rear ends have the same perch width but overall width is 1/4” wider. You’ll need to change either driveshaft yoke or pinion yoke to with in your Mustang. Also, most Versailles rearends has 2 something gear ratios and aren’t great for a performance car. You’ll want to upgrade.

"Do it right the first will cost you less in the long run."
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