Arb RD12 Manuel d'utilisateur télécharger pdf (Page 9)

2 Removing the Existing Differential

2.5 Checking the Current Backlash Amount

IMPORTANT:

This step is a precautionary measure recommended by ARB due to

the fact that some after market ring and pinion sets have been

manufactured to run with different backlash settings than those

specified by your vehicle manufacturer. Although ARB must

recommend you set backlash according to your service manual

guidelines, we also advise that you compare the backlash

measurements taken here to the recommended backlash settings

in your vehicle service manual. Measurements found to be outside

of your service manual recommendations may indicate the need to

deviate from those settings in order to achieve quiet running with a

good contact mark.

Refer to your vehicle service manual or your local authorized ARB

installer for more information.

c Set a depth indicator on one of the ring gear teeth as in Figure 2.

Figure 2.

c While supporting the pinion gear by holding the drive shaft, rotate the

differential in both directions while observing the maximum variation

in depth from the indicator (i.e., the highest value minus the lowest

value). This value is referred to as the ring and pinion backlash.

c Rotate the differential center 90° and measure again for accuracy.

c Record the average of all measurements.

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Arb RD12 Manuel d'utilisateur Page 9