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I believe 1970 would have been a transition year going from the "old" 23 spline to the "new" 35 spline. I don't have the measurements, but I'm pretty sure the 35 spline axles are bigger in diameter and stronger.


Your absolutely correct on that about bigger being better and stronger Same thing on the transition in 1970


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)