ARB RD110 - Manual (Page 21)

3 Installing the Air Locker
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c Carefully spread the housing (Fig 10.) just enough to install the
differential carrier (Refer to your vehicle’s service manual).
NOTE : Never spread the housing more than 0.5mm [0.020”].
c While holding the bearing cup onto the carrier bearing, hold the
shim packs ’D’ and ‘E’ in their correct positions, then insert the Air
Locker into the differential housing with the seal housing solder joint
rotated so that it is pointing out of the differential housing.
NOTE : If the shim pack is too difficult to install then the
shims may need to be tapped in. Be careful not to
damage the shim packs while installing them.
c Bend the seal housing tube around the outside of the ring gear until
the end of the tube can be inserted through the hole in the
bulkhead fitting (See Fig.11.).
Figure 11.
c Remove the spreader.
c Install the bearing caps oriented as they were marked before they
were removed, and tighten the bearing cap bolts. It is not
necessary to torque them down at this time.
c Check that some backlash can be felt between the ring and pinion
gears. No backlash would be an early indication of incorrect shim
thickness.