Gears in rear end

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erafuse

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Have a 1973 Dart Swinger. What is the lowest gears you can get for the rear end? Looking to lower the rpms at highway speed.
 
you want higher gears not lower I think there is a 2.45-1 or a 2.78 -1 or a 3.23-1 what is in there now .?
 
you want higher gears not lower I think there is a 2.45-1 or a 2.78 -1 or a 3.23-1 what is in there now .?
Think there are 323s in there now. I new I need a lower number just had the wording wrong. Do you think 278s would lower the rpm much?
 
Be carfull, some 8 1/4 rear ends will not go very high , I have a 73 rearend out of a duster that could not go much lower then 2:45, I put 2:78 in it. something todo with the case and pinion location
 
Be carfull, some 8 1/4 rear ends will not go very high , I have a 73 rearend out of a duster that could not go much lower then 2:45, I put 2:78 in it. something todo with the case and pinion location
Okay thanks.
 
Have a 1973 Dart Swinger. What is the lowest gears you can get for the rear end? Looking to lower the rpms at highway speed.

A bit more info would help.

Tire size, which rear, what are the RPM's at cruise. etc.
 
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