ARB RD109 - Manual (Page 10)

2 Removing the Existing Differential
8
2.6 Removing the Differential Center
IMPORTANT:
YOU
MUST SPREAD THE HOUSING ON CAST IRON MODELS
Spreading the differential housing with a differential case
spreader is a step which is critical to set up bearing pre-load
on cast iron differential housings (See Figure 3.). Improper
pre-load will result in undue bearing wear, increased stresses
in the differential center, increased running noise, and
ultimately, ring and pinion gear damage.
Remove both bearing caps.
Carefully spread the housing (Fig.3.) enough to remove the
differential center. (Refer to your vehicle’s service manual).
NOTE : Do not spread the housing more than 0.50mm [0.020”].
HINT : Be sure not to mix up the left and right hand bearing
cups. Later it will be necessary to know which cup
came from which side.
Once the housing has been adequately spread, the differential may
be removed by pulling forward on the differential carrier.
Figure 3.