A3 Mk2
| Exploded view - differential |
Note| t | Heat tapered roller bearing inner race to 100° C before installing. |
| t | Always renew both tapered roller bearings together. |
| t | Adjust differential if tapered roller bearings, differential cage, gearbox housing or clutch housing are renewed → Chapter. |
| 1 - | Gearbox housing |
| 2 - | Shim |
| q | For differential |
| q | Determining thickness → Chapter |
| 3 - | Tapered roller bearing outer race |
| q | Pulling out → Fig. |
| q | Pressing in → Fig. |
| 4 - | Tapered roller bearing inner race |
| q | Pulling off → Fig. |
| q | Pressing on → Fig. |
| 5 - | Differential cage |
| q | With final drive gear |
| q | Differential cage is matched to one-piece thrust washer → Fig. |
| q | Hole for spring pin is matched to length of spring pin → Fig. |
| q | For correct version, refer to → Electronic parts catalogue |
| 6 - | Tapered roller bearing inner race |
| q | Pulling off → Fig. |
| q | Pressing on → Fig. |
| 7 - | Tapered roller bearing outer race |
| q | Pressing out → Fig. |
| q | Pressing in → Fig. |
| 8 - | Clutch housing |
| 9 - | Sleeve |
| q | Forms housing for oil seal → Item |
| q | Removing and installing → Fig. |
| 10 - | Oil seal |
| q | Renewing flange shaft oil seal (left-side) → Chapter |
| q | Renewing flange shaft oil seal (right-side) - two-piece oil seal and sleeve → Chapter |
| 11 - | One-piece oil seal and sleeve |
| q | If oil seal is damaged, renew both sleeve and oil seal → Chapter |
| 12 - | Countersunk bolt |
| q | 25 Nm |
| q | Screws into threaded piece → Item |
| 13 - | Flange shaft |
| q | Removing and installing → Chapter |
| 14 - | Spring for flange shaft |
| q | Installed behind flange shafts |
| 15 - | Thrust washer |
| q | Installation position → Fig. |
| 16 - | Tapered ring |
| q | With grooves to engage on thrust washer |
| q | Installation position: Taper towards differential cage |
| 17 - | Circlip |
| q | Holds tapered ring, thrust washer and spring in position when flange shaft is removed |
| 18 - | One-piece thrust washer |
| q | Lubricate with gear oil before installing |
| q | One-piece thrust washer has a projection on some versions → Fig. |
| 19 - | Sun wheel |
| q | Installing → Fig. |
| 20 - | Threaded piece |
| q | Installing → Fig. |
| 21 - | Differential pinion pin |
| q | Drive out with drift |
| q | Installing → Fig. |
| 22 - | Spring pin |
| q | Secures differential pinion pin |
| q | Spring pins of two different lengths are fitted |
| q | Identification of different types of spring pin → Fig. |
| q | Short spring pin: removing and installing → Fig. |
| q | Long spring pin: is sheared off on removal → Fig. |
| q | Long spring pin: installing → Fig. |
| 23 - | Planet pinion |
| q | Installing → Fig. |
| 24 - | Sun wheel |
| q | Installing → Fig. |
