Hey Ted, I appreciate that. I have one for the 74 Dart which originally had an 8.25 rear. My 74 orginally came with a 6 and an 8.25 rear so the driveshaft I have is 52 5/8 x 3.25 which is probably what you have for your 74. I got the chart from the web so the red highlight was someone else's inclusion.
Thanks again
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