Volkswagen Workshop Service and Repair Manuals

Example:

i= Z2/ Z1 1)

iG = Gear ratio = ZG2: ZG1 = 40 : 47 = 0.851

iA = Axle ratio = ZA2 / ZA1 = 62 / 16 = 3.875

Overall ratio = total ratio
= iG x iA = 0.851 x 3.875 = 3.298

     1)     Z1 = No. of teeth driving gear, Z2 = No. of teeth driven gear