A4 Cabriolet Mk2
| Adjustment and marking of final drive gear set |
| 1 - | Identification “O937” denotes an Oerlikon gear set with a ratio of 37 : 9. |
| The gear set may also be manufactured by Klingelnberg “K937” or Gleasen “G937”. |
| 2 - | -312- number of matched pair of gears |
| 3 - | Allowance “r” is based on the master gauge used on the test machine in production. The allowance “r” is always given in 1/100 mm. For example: “25” indicates r = 0.25 mm |
| Ro - | Length of master gauge used on test machine “Ro”. |
| Ro - | Crown wheel = 57.50 mm |
| R - | Actual distance between centre axis of crown wheel and face of pinion shaft at point with quietest running for this gear set. |
| Vo - | Hypoid offset |
