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Replacement speedo drive gear...what color or tooth count?

MykeNytemare

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Aug 25, 2014
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Hey all,

I have a 727 behind the 440 that is going into my 67 Coronet. The factory speedo never seemed right with the red drive gear (didnt count teeth), plus now I have 3.55 gears in the rear...I am running 15" tires that are very close to the factory in overall height. The 8 3/4 rear is from a 70s Mopar.

I remember reading the there were certain colors for certain rear ratios. What color gear would be the best or closest? Or what tooth count?

Or can someone direct me to that info as I couldnt find it.

Thanks in Advance!
 
mopar-gear-chart-jpg.jpg
 
Another chart out of 66 SM. A combination of the 3 should be able to get it right.
speed.JPG
 
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