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Differential, disassembling and assembling

NOTE:
  • Heat tapered roller bearing inner race to 100°C (212°F) before pressing on.
  • Heat adjusting ring for tapered roller bearing to 100°C (212°F) before pressing in tapered roller bearing outer race.

The following list pertains to Fig 1.

  1. Differential housing with riveted gear for final drive 
    • Final drive gear is riveted onto differential housing and then machined
    • If differential or final drive gear is damaged, replace differential housing together with riveted final drive gear
    • Number of teeth on final drive gear, see TRANSMISSION LAYOUT 
  2. Output shaft/drive flange 
  3. Tapered roller bearing inner race 
  4. Tapered roller bearing outer race 
  5. Bearing body for tapered roller bearing 
  6. O-ring 
    • Always replace
  7. O-ring 
    • Always replace
  8. Adjusting ring for tapered roller bearing 
  9. Output shaft/drive flange 
  10. Tapered roller bearing outer race 
  11. Tapered roller bearing inner race 
  12. Driver bushing 
    • Drive off together with speedometer drive gear -13-
    • Drive out with drift
  13. Speedometer drive gear 
    • Drive out with drift
    • Install together with driver bushing -12-
  14. One-piece thrust washer 
    • Place into differential housing before installing bevel gears
  15. Small bevel gears 
  16. Large bevel gears 
  17. Circlip 
    CAUTION: Do not remove circlip before pulling off drive flange, as compression spring is pre-loaded.
  18. Shaft for bevel gears 
    • Drive out with drift
    • When driving in, take care not to damage one-piece thrust washer
  19. Spring pin 
  20. Fig 1: Exploded View Of Differential Components
    G03362481Courtesy of VOLKSWAGEN OF AMERICA, INC.