Volkswagen Workshop Service and Repair Manuals

Example:

i= Z2/ Z1 1)

iG = Gear ratio = ZG2: ZG1 = 36 : 43 = 0.837

iA = Axle ratio = ZA2 : ZA1 = 70 : 19 = 3.684

Overall ratio = total ratio
= iG x iA = 0.837 x 3.684 = 3.084

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