ARB RD94 - Manual (Page 17)

4 Installing the Air Locker
15
c Holding the assembled components in place at each end, insert
and hold the Air Locker into the differential housing with the seal
housing tube pointing straight out of the housing.
c Install one bearing cap on the ring gear side. The bearing cap on
the seal housing side will need to be drilled as clearance for the
seal housing tube.
NOTE : It is very important to make sure the punch marks
made on the differential housing while removing the
differential are matched to the punch marks on the
bearing cap. The bearing cap must be replaced
exactly as it was removed. (Refer to section 2.4)
c Install the bearing cap bolts finger tight.
c Push the Air Locker hard across to the ring gear side, and measure
the gap (end float) between the seal housing and the bearing bore
edge with a feeler gauge.
c Consult your vehicle manufacturer’s service manual to determine
the carrier bearing pre-load amount specified for your vehicle.
c Add the specified pre-load amount to the measurement taken with
the feeler gauge to determine a shim amount for ‘E’ in Figure 9.
PRE-LOAD + END FLOAT = SHIM PACK
c Select suitable shims from the supplied shim kit to make up a shim
pack of this thickness.