Arb RD136 User Manual download pdf (Page 15)

3 Installing the Air Locker

3.3.2 B

High-Pinion Differentials

 Mark a spot on the inside of the differential housing on the ring gear

side in the position shown. (Fig.6.) Ensure that the hole will be clear

of the rib on the outside.

NOTE : This position has been chosen to ensure that the airline

and bulkhead fitting clear the factory suspension

mounts.

Figure 7.

 Cover the drive pinion area with a rag to protect it from metal filings.

 Secure the differential housing to the work bench.

 Drill an 11.2mm [7/16”] diameter hole through the differential

housing square to the inside surface.

 Tap the hole from the outside using ¼”NPT thread tap.

 Remove any sharp edges that may chip off from around the hole

and fall into the housing.

 Very carefully, remove the rags and inspect with a service light

inside the housing to insure no metal filings are left behind.

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Arb RD136 User Manual Page 15