do it this way: make a mark on the tire thats off the ground (leave the other side down if it's a peg leg). Turn the driveshaft until the mark on the tire makes one complete revolution. Count the # of times the driveshaft has turned while the tire turned exactly one revolution. If the shaft turned 3 1/4 times, then you have a 3.23:1 ratio. A little over 4 turns, 4.10 etc... Easier to do with two people.
__________________
steve moore
|