[flwolfman]

The formula is:

(# of drive gear teeth) X (axel Ratio) X (tire Revolutions per mile)
__________________________________________________ _____
1000

Count the teeth on the gear inside the transmission where you plug your cable into. Hard to see, but should be 6, 7, or 8. Multiply that by your rear ratio like 3.91 or whaterver, times your tire revolutions per mile divided by 1000. That will tell you close to how many teeth you need on the new gear on the end of your cable. Hope this helps, Jim