Join Date: Jul 2003
Location: Memphis, TN
Bronco Info: '83 VIN & title on '93 frame/body w/'95 4.9L & EB paint
Well, you can count the spirals along the gear and that might be how that website IDs drive gears, but that number will be meaningless for gear ratio (the way most gearsets are IDed). To get the effective tooth count for the ratio, you'd have to wrap something around the drive gear & then count how many lands it crosses. But that would require removing either the gear or the tailhousing, which is pointless when it's color-coded.