3 Installing the Air Locker
23
3.7.2
B
Pre-Loading a Live Axle Housing
IMPORTANT NOTE FOR OE MASTER SHIM TYPE
DANA 30 SETUP:
Grind or cut a notch into the left-hand factory shim as clearance for the
seal housing tube at final assembly, as per Figure 14.
Insert the right hand OE master shim between the ARB master shim
and the axle housing, and the left hand OE master shim between the
seal housing and the axle housing making sure to align the notch with
the notch in the axle housing and the seal housing tube.
All pre-load measurements and any required shimming should be
made between the seal housing and the left hand OE master shim.
Insert and hold the
Air Locker
into the differential housing.
Insert the remaining ARB master shim from the
Air Locker
shim kit
between the right-hand bearing cup and the bearing seat of the
axle housing with the rounded edge of the master shim facing away
from the center.
Insert the shim pack determined earlier as
‘B’
between the bearing
cup (right-hand side) and the ARB master shim.
Push (or lightly pry) the
Air Locker
hard across to the right-hand
side, and measure the maximum gap (also called the ‘end float’)
between the outside of the seal housing and the inside face of the
axle housing with an automotive feeler gauge. (Fig.18.)
Figure 18.
Consult your vehicle manufacturer’s service manual to determine
the carrier bearing pre-load amount specified for your vehicle.
Add the specified pre-load amount to the measurement taken with
the feeler gauge to determine a shim amount for
‘D’
in Figure 13.
