ARB RD168 User Manual
Page 3

Table of Contents:
1
1 Introduction
3
1.1 Pre-Installation Preparation
3
1.2 Tool-Kit Recommendations
4
2 Removing the Existing Differential
5
2.1 Vehicle Support
5
2.2 Differential Fluid Drain
5
2.3 Disconnecting the Axles
6
2.4 Marking the Bearing Caps
7
2.5 Checking the Current Backlash Amount
8
2.6 Removing the Differential Center
9
3 Installing the Air Locker
11
3.1 Insuring Adequate Oil Drainage
11
3.2
Approximate Backlash Shimming
12
3.3
Mounting the Ring Gear
16
3.4
Drilling and Tapping the Bulkhead Port
17
3.5
Assembling the Seal Housing
18
3.6
Pre-Load Shimming
19
3.7
Reinstalling the Bearing Caps
20
3.8
Checking the Backlash
21
3.9
Setting Up the Bulkhead Fitting
22
3.10
Profiling the Seal Housing Tube
24
3.11
Bench Testing the Air Locker
25
4 Installing the Air System
26
4.1 Mounting the Solenoid
26
4.2 Running & Securing the Air Line
28
4.3 Connection to the Bulkhead Fitting
29
5 Mounting & Connecting the Electrical System
31
5.1 Mounting the Actuator Switch(es)
31
5.2 Wiring the Actuator System
32
6 Testing & Final Assembly
36
6.1 Leak Testing
36
6.2 Reinstalling the Axles
36
6.3 Testing the Air Locker Actuation
39
6.4 Re-Sealing & Filling the Differential
39
6.5 Post-Installation Check List
40
7 Parts List
41
7.1 Exploded Assembly Diagram
41
7.2 Itemized Parts List
42