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Home >> Volkswagen >> 2008 >> R32 >> Repair and Diagnosis >> External Pages >> Different car >> Section 58 (Final Drive, Differential - 5-Speed Manual Transmission 0A4 (As Of 06.2011)) >> 39 Final Drive, Differential >> Description And Operation >> Differential Overview

Differential Overview

WARNING: This page is about a different car, the 2009 Volkswagen Rabbit, 2008 Volkswagen Rabbit, 2007 Volkswagen Rabbit, and 2006 Volkswagen Rabbit. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Heat the inner race/tapered roller bearing to 100 °C (212 °F) before installing.

Replace both tapered roller bearings together.

Adjust the differential, refer to ADJUSTMENT OVERVIEW  when replacing the tapered roller bearing, differential housing, transmission housing and/or clutch housing.

Fig 1: Differential, Disassembling And Assembling Overview
GWWN39-1259Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Transmission Housing
  2. Adjusting Shim
  3. Outer Race/Tapered Roller Bearing
  4. Inner Race/Tapered Roller Bearing
  5. Differential Housing
    • With the final drive gear.
    • Thrust washer union fitted to differential housing, refer to Figure.
    • Roll pin hole adapted to the length of the roll pin, refer to Figure.
  6. Inner Race/Tapered Roller Bearing
  7. Outer Race/Tapered Roller Bearing
  8. Clutch Housing
  9. Sleeve
  10. Seal
  11. Seal and Sleeve (One Piece)
  12. Bolt
    • 25 Nm
    • Install with the threaded piece -item 20-
  13. Flange Shaft
  14. Flange Shaft Pressure Spring
    • Installed behind the flange shaft.
  15. Thrust Washer
    • Installed position, refer to Figure.
  16. Tapered Ring
    • With grooves for the thrust washer.
    • Installed position: differential housing taper.
  17. Locking Ring
    • Holds the tapered ring, the thrust washer and the pressure spring when the flange shaft is removed.
  18. Thrust Washer Union
    • Install using transmission fluid.
    • The thrust washer union has a ridge on some transmissions. Refer to Figure.
  19. Large Differential Bevel Gear
    • Installing, refer to Figure.
  20. Threaded Piece
    • Installing, refer to Figure.
  21. Differential Taper Axle
    • Removing with a short roll pin, refer to Figure.
    • Removing with a long roll pin, refer to Figure.
    • Installing, refer to Figure.
  22. Adapter Sleeve
    • For securing the axle for differential bevel gears.
    • Different lengths of roll pins are installed.
    • Differentiating the roll pins. Refer to Figure.
    • Short roll pin: Removing and installing, refer to Figure.
    • Long roll pin: Sheared off during removal, refer to Figure.
    • Long roll pin: Installing, refer to Figure.
  23. Small Differential Bevel Gear
    • Installing, refer to Figure.
  24. Large Differential Bevel Gear
    • Installing, refer to Figure.
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