Years ago, there was a guy back home who had a Dana 60 in his
455/4-speed Trans Am. It had 4.88s (I don't remember tire size).
Anyway, he used to run it at Kanawha Valley (1/8 mile) I told
him it would probably be quicker with 4.10s. He switched to
4.10s and it was quicker. I don't remember how much but, I
know his car was NOT light. True story.