Will the rear axle fit?

74 dart sport said

Does anyone know if a 8 and 3/4 rear axle from a 1968 B- body would fit in a 1974 dodge dart sport originally with a 8 and 1/4 rear axle (A- body)? The 8 and 3/4 axle is a 3.23 sure grip and the 8 and 1/4 axle is a 2.76 peg leg. Would I be able to just swap out the two? Are the measurements the same?
Thanks, Kameron

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Absolutely, I have one in my 74 Dart Sport. I moved the perches in on each side to get the 43' center to center measurement.

Keep in mind pinion angle when doing so. I scribed lines extending inward, removed the old perches and lined the new ones up with my scribed line and it worked out perfect. I run 15" 60 series tires on a 10" wide wheel with 5 1/2 inch backspace.