INSTALLATION GUIDE TOYOTA 8” IFS, 50mm BRNG RD131 Part No. 2102131Revision Date 02/10/06Copyright © 2006 by AR
3 Bench Measurement 83.1 Approximate Backlash Shimming In order to reproduce a similar pre-load and ring and pinion backlash in your Air Loc
3 Bench Measurement 9 Measure the thickness of the factory shim removed from the end of the differential carrier (shown as ‘B’ in Fig.3.) and
3 Bench Measurement 10 HINT : If your calculations are correct then the following equation will also be true: A + B – C – D = ZERO
4 Installing the Air Locker 11 4.1 Installing the Carrier Bearings With the Air Locker well supported in an arbor press, apply a thin film
4 Installing the Air Locker 12 Apply a thread locking compound to the thread of each ring gear bolt before inserting it. NOTE : Do not
4 Installing the Air Locker Lubricate the seal housing running surface on the Air Locker carrier with oil. Assemble the bearing cup onto the l
4 Installing the Air Locker 14 4.5 Drilling and Tapping the Bulkhead Port An air line port must be drilled and tapped through the differe
4 Installing the Air Locker 15 4.6 Drilling the Diff Housing for Seal Housing Tube A hole must be drilled through a tab inside the diff hous
4 Installing the Air Locker 16 4.7 Final Backlash Checking Spread the differential housing again (Refer to section 2.6). Hold shim pack
4 Installing the Air Locker 17 4.7.1 Re-Shimming the Backlash NOTE : This step is only necessary when adjusting for incorrect backlash.
1 No liability is assumed for damages resulting in the use of the information contained herein. ARB AIR LOCKER Locking Differentials and AIR LO
4 Installing the Air Locker 18 Figure 11. Install the differential cover plate onto the differential housing using 2 bolts
4 Installing the Air Locker 19 Remove the cover plate. Using an automotive brake line tubing cutter, trim the tube at the position marked.
4 Installing the Air Locker 20 Figure 13. NOTE : Excessive tightening of the center compression nut is not necessary to f
4 Installing the Air Locker 21 4.10 Bench Testing the Air Locker To test the Air Locker; when 620kPa [90 PSI] shop air is applied to the
4 Installing the Air Locker 22 4.11 Reinstalling the Differential and Axles Apply gasket sealant (or a gasket) to the differential cover
5 Installing the Air System 235.1 Mounting the Solenoid 5.1.1 Connection to an ARB Air Compressor (Fig.15.) Remove one of the 1/8” B
5 Installing the Air System 24 5.1.2 Connection to an Alternate Air Source For ease of installation, quality of air supply, and a high lev
5 Installing the Air System 25 5.2 Running and Securing the Air Line The path taken by the air line from your air source (i.e., compressor
5 Installing the Air System 26 5.3 Connection to the Bulkhead Fitting Trim the air line to length using a sharp knife. Insert the supp
6 Mounting & Connecting the Electrical System 27 6.1 Mounting the Actuator Switch(es) Air Locker actuator switch(es) can be easily pan
Table of Contents: 1 1 Introduction 31.1 Pre-Installation Preparation 31.2 Tool-Kit Recommendations 4 2 Removing the Existing Differe
6 Mounting & Connecting the Electrical System 28 Figure 17. 6.2 Wiring the Actuator System 6.2.1 Connection
6 Mounting & Connecting the Electrical System 29 UP Figure 18. NOTE : ARB wiring loom #180405 shown. Consult the c
6 Mounting & Connecting the Electrical System 30 6.2.2 Connection to an Alternate Air Source When connecting the actuation switch to a
6 Mounting & Connecting the Electrical System 31 6.2.2.2 Dual Air Locker System If two Air Lockers are to be installed in the syste
7 Testing & Final Assembly 32 7.1 Leak Testing With the vehicle parked and the engine off, turn the compressor on and wait until the
7 Testing & Final Assembly 33 Rotate one wheel by hand. The wheel should rotate freely and the opposite wheel should be turning in the
7 Testing & Final Assembly 34 7.4 Post-Installation Check List Now that the Air Locker installation has been completed, ARB recommends
8 Parts List 35 8.1 Exploded Assembly Diagram (See itemized parts list overleaf) Figure 2
8 Parts List 36 8.2 Itemized Parts List (See exploded diagram Figure 22.) AIR LOCKER MODEL No. : RD131 ITEM # QTY DESCRIPTIO
1 Introduction 3 IMPORTANT : BEFORE ATTEMPTING TO DISMANTLE YOUR VEHICLE FOR THIS INSTALLATION, PLEASE READ THIS INSTALLATION GUIDE IN ITS EN
1 Introduction 4 1.2 Tool-Kit Recommendations Below is a list of tools and supplies you may need to complete this installation. Requiremen
2 Removing the Existing Differential 5 2.1 Vehicle Support Safely secure the vehicle on a hoist. We recommend supporting the vehicle on a
2 Removing the Existing Differential 6 2.4 Marking the Bearing Caps Using a pointed center punch, gently mark the differential housing an
2 Removing the Existing Differential 7 Set a depth indicator on one of the ring gear teeth as in Figure 2. Figure 2. While sup
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