D Dart package ?

dart4forte said

I’ll dig it up. I gave a copy to Dart dude a few years ago. I thought he would of put it up on his site.

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I posted the NHRA letter in post #29 if that is the letter you are referring to. I think that was the only letter that you sent me on the 8 3/4 rear. But I could be wrong. I know they had them in 66 because all 3 of the D/Darts that I have owned had them. All D/Darts came with 4.86 gears from the factory.