73 Duster speedometer reads wrong

1968FormulaS340 said
This says you have the wrong gear. Should be a 34.

http://www.yearone.com/yodnn/tech/T...Q/MoparSpeedoGearChart/tabid/415/Default.aspx

yeah..i saw that...another one says use a 36 tooth...

but year one chart say 1 tooth off..is only 2-3 mph off at 60 mph...

this thing is way off....probably the speedometer itself..

after looking..I just took a 34 tooth gear out...lol