Speedometer Drive gear

[Twisted72]

Hi,I've got a 72 Duster with a 727 trans,8 3/4" with 3.55 Sure-grip and 27" tall tires,Which gear do I need in trans to make my speedometer read right,currently is about 20mph fast.Thank's in advance.:read2:

 

[Demon416]

Here you go.

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

 

[Twisted72]

Thank's Demon416,just what I needed.