Volkswagen Workshop Service and Repair Manuals

Example:

i= Z2: Z1 1)

iG = gear ratio = ZG2: ZG1 = 38 : 49 =0.776

iA = Axle ratio = ZA2 : ZA1 = 61 : 14 = 4.357

itotal = Overall ratio
= iG x iA = 0.776 x 4.357 = 3.381

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