What options for O/D behind a S/6?

nm9stheham said

Youse guys are doin' something wrong. I had a '76 Dart Lite that got 27-28 mpg at 70+ mph and 29 mpg at 65 mph. I think that car had a 2.76 rear. Al lthe 225 cars my family had without OD's (2 autos and 2 3-speed manuals) got in the 22-24 range on the interstate.

Probably won't be able to make it work, but the old Hone-O-Drive is back: http://hone-o-drive.com/

If you have no use for that 4 speed OD Feather Duster trannie, please let me know!

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Those feather Dusters cars were developed to get that kind of mileage during the gas crunch when the Arabs were pissed off that we supported the Israelis during the six day war, and cut us off from the crude oil spigot.

I talked to Doug Dutra at length about this subject, and he often had similar results but did say he has a few cars that got 3 or 4 mpg more than I did on some of his slanty's. That puts the mileage up near where you were. I be the were pretty slow off the line if they did pull down 22 to 24 mpg. The feather Dusters were in a class of their own with the special overdrive and all.