Quote:
Originally Posted by custom10nut
I’m not expecting “Better Gas Mileage”, but just want to lower the RPM to go easier on the engine
I know the change to 3.42 won’t make a HUGE difference,
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IMO, I think it is a great upgrade. You don't want drastic changes when altering gear ratio's with the same engine, trans etc. The 3.40 became a common ratio in the square door years, but, as I mentioned in earlier posts on the same subject, the '67-'72 era left major gaps in gear ratio coverage in both 1/2 ton and 3/4 tons.