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Old 07-29-2020, 03:07 PM   #19
my4dv8
Senior Member
 
Join Date: Aug 2010
Location: New Zealand
Posts: 1,111
Default Re: New to the Flathead game and need advice

3.25 gears will be too tall for anything less than a built motor . 3.54 gears will be much better. what size rear tyres do you have, just to complete the calculations on RPM at 60mph.Its a little more involved changing rear gears on these banjo axles . But with the right advise you can do it.
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