ar3530d481503b

Determining thickness of shims for differential on rear axle housing

Type ar · topic 35.30 · version 0105 · 2009-11-23

Applies to: REAR AXLE 741.408 in MODEL WD1, WD2, WD3, WD6, WD7, XD1, XD2, XD3, XD6, XD7, YD1, YD2, YD3, YD6, YD7 REAR AXLE 741.130 in MODEL XD4, XD5, YD4, YD5 REAR AXLE 741.408 in MODEL 903.61 /62 /66 /67 with CODE (ZU7) National version for Canada with CODE (ZU8) National version for USA with CODE (ZU9) National version for Mexico REAR AXLE 741.130 in MODEL 904.61 /62 /66 with CODE (ZU7) National version for Canada with CODE (ZU8) National version for USA with CODE (ZU9) National version for Mexico

Where it sits

Function group 2 Chassis › 35 Rear axle › 35.30 Final drive, drive shafts — Series 903 (models 61*, 62*, 66*, 67*) · Series 904 (models 61*, 62*, 66*)

EinPAS 17 Drivetrain/axle › 17.51 Rear axle › 17.51.65 Rear axle differential/axle through-drive — Series 903 (models 61*, 62*, 66*, 67*) · Series 904 (models 61*, 62*, 66*)

Also applies to engines/gearboxes: 741 130, 741 408

AR35.30-D-4815-03B

Determining thickness of shims for differential on rear axle housing

Measure basic dimension at differential.

AR35.30-D-4815-02A

Test and adjustment values for rear axle drive

Number

Designation

Rear axle 741.40/43

Rear axle 741.130/131

BE35.30-N-1002-01B

Preload of differential bearing

mm

0,16

0,16

The calculation is based on the inner dimension of the housing and the height of the differential (measure basic dimension at differential).
The value for the preload of the differential bearing must also be taken into account.

Example: Housing internal dimension 164,90 mm

Value for preload + 0.16 mm

Height of differential (without shims) - 154,10 mm

Difference dimension 10,96 mm

To ensure that the gear backlash is achieved, select thinner shims for crown wheel side, e.g. for the value 10.96 mm:

Ring gear side 5.40 mm

Opposite 5,56 mm

A 1 mm thick shim corresponds to approx. 1.4 mm gear backlash.

The shims are available in thicknesses from 4.9 mm to 6.38 mm in graduations of 0.02 mm.

Referenced documents