Bearing Pre-Load For Ball Bearings For the Center Differential, Redetermining

Bearing Pre-load for Ball Bearings for the Center Differential, Redetermining

This adjustment is necessary when replacing the following parts:

• Transmission cover

• Output wheel/drive wheel

• Spacer sleeve

• Center differential

Special tools, testers and auxiliary items required

• Arbor 50 mm Dia. (VW 432)

• Thrust Pad (VW 447 H)

• Ruler (T40100)

• Digital Depth Gauge (VAS 6087)

• The outer race/tapered roller bearing for mounting drive wheel/spur gear is installed in the transmission cover.

• Drive wheel/spur gear, spacer sleeve and the center differential are installed.

- Mount the (T40100) on the clean joint surface on the transmission cover.






- Use a depth gauge - 1 - (for example (VAS 6087) ) to digitally measure the space between the ball bearing - 2 - and the ruler.

• Mount tools VW 447h and (VW 432) to keep the center differential from tipping while measuring.

In this example, the dimension - a - = 142.45 mm.

- Add the height of the (T 40100) to this measurement.






Determine shim according to table.






• Allocate adjustment shims, refer to the electronic parts catalog ETKA.

- In this example, the spacer sleeve thickness is 1.05 mm.