Description:
ARB has been challenging conventional thinking on off road equipment designs for over 30 years, and the ARB Air Locker has been a success from the very beginning. Created to provide 100% traction on demand, without sacrificing any of your vehicle’s highway driving performance, ARB Air Lockers employ a 12 volt air compressor designed to activate (and deactivate) a solid and durable locking mechanism inside the differential. This gives you the traction you need, when you need it, all at the flick of a switch, all within the safety and comfort of the driver’s seat.
The advantage of the ARB Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear the vehicle maintains maximum possible traction at all times. When unlocked, it operates just like conventional "open" differentials.
In addition to providing outright improvements to a 4x4’s off road capabilities, the Air Locker offers significant environmental benefits. When approaching difficult terrain, less reliance is put on momentum. An Air Locker equipped truck can be driven in a slower, safer and more controlled manner as a result of vastly improved traction. This style of driving greatly reduces the likelihood of incurring vehicle damage and lessens the environmental impact as well.
Below is a list of ARB Lockers and their corresponding Poly Performance Service Parts Listing, Installation Instructions PDF and Locker Part List.
 Service Part Listing |
|
 ARB Installation PDFs |
|
 ARB Locker Parts List |
Locker
Part # |
Description |
Splines |
Ratio |
- |
- |
- |
| ARB-RD01 |
Toyota 8.0", 45mm Bearing
(Replaced by RD132) |
30 |
All |
 |
 |
 |
| ARB-RD02 |
Toyota 8.9", 45mm Bearing
(Replaced by RD142) |
30 |
All |
|
|
|
| ARB-RD03 |
Land Rover, Banjo
(Replaced by RD127) |
10 |
3.54 |
|
|
|
| ARB-RD04 |
Nissan H233
(Replaced by RD134) |
31 |
All |
|
|
|
| ARB-RD05 |
Mitsubishi 8", RR |
28 |
All |
|
|
|
| ARB-RD06 |
D44
(Replaced by RD116) |
30 |
3.92 & UP |
|
|
|
| ARB-RD07 |
D44
(Replaced by RD117) |
30 |
3.73 & DN |
|
|
|
| ARB-RD08 |
Toyota 8.9", C-Clip, 45mm Bearing
(Replaced by RD153) |
30 |
All |
|
|
|
| ARB-RD09 |
Nissan H233B
(Replaced by RD136) |
31 |
All |
|
|
|
| ARB-RD10 |
GM 10 Bolt, 8.5"
(Replaced by RD83) |
28 |
2.73 & UP |
|
|
|
| ARB-RD12 |
GM 12 Bolt, 8.9" |
30 |
3.73 & UP |
|
|
|
| ARB-RD16 |
Ford 8.8"
(Replaced by RD82) |
28 |
All |
|
|
|
| ARB-RD17 |
Nissan H233B
(Replaced by RD135) |
33 |
All |
|
|
|
| ARB-RD18 |
D44
(No Longer Available) |
19 |
3.92 & UP |
|
|
|
| ARB-RD19 |
D44
(No Longer Available) |
19 |
3.73 & DN |
|
|
|
| ARB-RD20 |
Land Rover, Salisbury, 3.54:1 |
24 |
3.54 |
|
|
|
| ARB-RD21 |
D60 |
30 |
4.56 & UP |
|
|
|
| ARB-RD22 |
D60 |
30 |
4.10 & DN |
|
|
|
| ARB-RD23 |
Toyota 8", 50mm Bearing
(Replaced by RD132) |
30 |
All |
|
|
|
| ARB-RD24 |
Nissan H233B
(Replaced by RD135) |
33 |
All |
|
|
|
| ARB-RD25 |
Mitsubishi 9", RR
(Replaced by RD46) |
28 |
All |
|
|
|
| ARB-RD26 |
Land Rover HD
(No Longer Available) |
24 |
3.54 |
|
|
|
| ARB-RD27 |
Nissan C200
(Replaced by RD107) |
29 |
All |
|
|
|
| ARB-RD28 |
GM 10 Bolt, 8.5"
(Replaced by RD84) |
30 |
2.73 & UP |
|
|
|
| ARB-RD30 |
D30
(Replaced by RD100) |
27 |
3.73 & UP |
|
|
|
| ARB-RD31 |
D30
(Replaced by RD101) |
27 |
3.54 & DN |
|
|
|
| ARB-RD32 |
Land Rover, Salisbury, 4.70:1 |
24 |
4.70 |
|
|
|
| ARB-RD33 |
Toyota 8.9", 50mm Bearing
(Replaced by RD142) |
30 |
All |
|
|
|
| ARB-RD35 |
D60HD |
35 |
4.56 & UP |
|
|
|
| ARB-RD36 |
D60HD |
35 |
4.10 & DN |
|
|
|
| ARB-RD140* |
Ford 10.25" & 10.5" (Sterling/Corporate) |
35 |
All |
|
|
|
| ARB-RD38 |
D35, Non C-Clip
(Replaced by RD103) |
27 |
3.31 & DN |
|
|
|
| ARB-RD39 |
D35, Non C-Clip
(Replaced by RD102) |
27 |
3.54 & UP |
|
|
|
| ARB-RD40 |
GM 14 Bolt, 9.5", C-clip |
33 |
All |
|
|
|
| ARB-RD41 |
Mitsubishi Jeep, RR
(No Longer Available) |
19 |
All |
|
|
|
| ARB-RD42 |
D60HD, C-Clip |
35 |
4.56 & UP |
|
|
|
| ARB-RD43 |
D60HD, C-Clip |
35 |
4.10 & DN |
|
|
|
| ARB-RD44 |
Isuzu, RR |
26 |
All |
|
|
|
| ARB-RD45 |
Mahindra (No Longer Available) |
19 |
All |
|
|
|
| ARB-RD46 |
Mitsubishi 9", RR |
28 |
All |
|
|
|
| ARB-RD47 |
AMC Model 20 |
29 |
2.73 |
|
|
|
| ARB-RD50 |
D50 |
30 |
All |
|
|
|
| ARB-RD51 |
GM/AAM 9.25" |
33 |
All |
|
|
|
| ARB-RD53 |
D70HD |
35 |
4.56 & UP |
|
|
|
| ARB-RD54 |
D70HD |
35 |
4.10 & DN |
|
|
|
| ARB-RD55B |
Ford 9"
(Replaced by RD119) |
31 |
All |
|
|
|
| ARB-RD56 |
Land Rover, Banjo
(Replaced by RD128) |
24 |
All |
|
|
|
| ARB-RD57 |
Land Rover, Banjo, P38A
(Replaced by RD138) |
24 |
All |
|
|
|
| ARB-RD186 |
AMC Model 20 |
29 |
3.08 & UP |
|
|
|
| ARB-RD64 |
Toyota 9.5" |
32 |
All |
|
|
|
| ARB-RD65 |
D70U |
35 |
4.56 & UP |
|
|
|
| ARB-RD66 |
D70U |
35 |
4.10 & DN |
|
|
|
| ARB-RD68 |
D35, C-Clip
(Replaced by RD103) |
27 |
3.31 & DN |
|
|
|
| ARB-RD69 |
D35, C-Clip
(Replaced by RD102) |
27 |
3.54 & UP |
|
|
|
| ARB-RD70 |
Nissan H260 |
37 |
All |
|
|
|
| ARB-RD71 |
Nissan H260
(Replaced by RD70) |
37 |
All |
|
|
|
| ARB-RD72 |
Suzuki Sierra, RR
(Replaced by RD208) |
26 |
All |
|
|
|
| ARB-RD73 |
Suzuki Sierra, FR
(Replaced by RD75) |
22 |
All |
|
|
|
| ARB-RD74 |
Suzuki Vitara, RR, 10 bolt RG |
26 |
All |
|
|
|
| ARB-RD75 |
Suzuki, FR, 10 bolt RG |
22 |
All |
|
|
|
| ARB-RD77 |
Suzuki Jimny (JA), FR
(Replaced by RD87) |
22 |
All |
|
|
|
| ARB-RD78A |
Nissan H233B
(Replaced by RD136) |
31 |
All |
|
|
|
| ARB-RD79 |
Suzuki Vitara, RR, 12 bolt RG |
26 |
All |
|
|
|
| ARB-RD80 |
D80 |
35 |
Varies by Mfg. |
|
|
|
| ARB-RD81 |
Ford 8.8" |
31 |
All |
|
|
|
| ARB-RD82 |
Ford 8.8" |
28 |
All |
|
|
|
| ARB-RD83 |
GM 10 Bolt, 8.5" |
28 |
2.73 & UP |
|
|
|
| ARB-RD84 |
GM 10 Bolt ,8.5" |
30 |
2.73 & UP |
|
|
|
| ARB-RD85 |
Isuzu RR,23 SPL, Non-LSD |
23 |
All |
|
|
|
| ARB-RD87 |
Suzuki Jimny, FR, ,8 bolt RG |
22 |
All |
|
|
|
| ARB-RD208 |
Suzuki, 10 bolt RG |
26 |
All |
|
|
|
| ARB-RD89 |
Toyota Tacoma, RR
(Replaced by RD129) |
30 |
All |
|
|
|
| ARB-RD90 |
Toyota 7.5" IFS |
27 |
All |
|
|
|
| ARB-RD91 |
D80 |
37 |
Varies by Mfg. |
|
|
|
| ARB-RD92 |
Toyota 8" IFS, 50mm Bearing
(Replaced by RD131) |
30 |
All |
|
|
|
| ARB-RD93 |
Chrysler 8.25" |
29 |
All |
|
|
|
| ARB-RD94 |
Isuzu IFS |
17 |
All |
|
|
|
| ARB-RD95 |
D60 |
32 |
4.56 & UP |
|
|
|
| ARB-RD96 |
D60 |
32 |
4.10 & DN |
|
|
|
| ARB-RD97 |
D70 |
32 |
4.56 & UP |
|
|
|
| ARB-RD98 |
D70 |
32 |
4.10 & DN |
|
|
|
| ARB-RD99 |
Ford 9", 2" Bearing |
35 |
All |
|
|
|
| ARB-RD100 |
D30 |
27 |
3.73 & UP |
|
|
|
| ARB-RD101 |
D30 |
27 |
3.54 & DN |
|
|
|
| ARB-RD102 |
D35 |
27 |
3.54 & UP |
|
|
|
| ARB-RD103 |
D35 |
27 |
3.31 & DN |
|
|
|
| ARB-RD104 |
D30 |
30 |
3.73 & UP |
|
|
|
| ARB-RD105 |
D35 |
30 |
3.54 & UP |
|
|
|
| ARB-RD106 |
Nissan C200 |
31 |
All |
|
|
|
| ARB-RD107 |
Nissan C200/R200A |
29 |
All |
|
|
|
| ARB-RD109 |
D44 |
35 |
3.92 & UP |
|
|
|
| ARB-RD110 |
Mitsubishi IFS |
28 |
All |
|
|
|
| ARB-RD111 |
Toyota 8" IFS, 53mm Bearing |
30 |
3.91 & UP |
|
|
|
| ARB-RD112 |
Chrysler 8.25" |
27 |
All |
|
|
|
| ARB-RD113 |
D44 |
33 |
3.92 & UP |
|
|
|
| ARB-RD114 |
GM 14 Bolt, 10.5", FF |
30 |
4.10 & DN |
|
|
|
| ARB-RD115 |
D70HD |
37 |
4.56 & UP |
|
|
|
| ARB-RD116 |
D44 |
30 |
3.92 & UP |
|
|
|
| ARB-RD117 |
D44 |
30 |
3.73 & DN |
|
|
|
| ARB-RD118 |
Suzuki Jimny, FR, 10 bolt RG |
22 |
All |
|
|
|
| ARB-RD119 |
Ford 9" |
31 |
All |
|
|
|
| ARB-RD121 |
Toyota 8" IFS, 53mm Bearing |
30 |
3.73 & DN |
|
|
|
| ARB-RD123 |
Mazda 8", RR, Shim Adjusted |
30 |
All |
|
|
|
| ARB-RD124 |
Toyota 8.9", C-clip, 50mm Bearing
(Replaced by RD153) |
30 |
All |
|
|
|
| ARB-RD125 |
D35, Non C-clip |
30 |
3.54 & UP |
|
|
|
| ARB-RD126 |
Santana PS-10, RR |
34 |
All |
|
|
|
| ARB-RD127 |
Land Rover, Banjo |
10 |
3.54 |
|
|
|
| ARB-RD128 |
Land Rover, Banjo |
24 |
3.54 |
|
|
|
| ARB-RD129 |
Toyota Tacoma, RR |
30 |
All |
|
|
|
| ARB-RD131 |
Toyota 8" IFS, 50mm Bearing |
30 |
All |
|
|
|
| ARB-RD132 |
Toyota 8", 50mm Bearing |
30 |
All |
|
|
|
| ARB-RD133 |
Toyota 8" RR, Shim Adjusted |
30 |
All |
|
|
|
| ARB-RD134 |
Nissan H233 |
31 |
All |
|
|
|
| ARB-RD135 |
Nissan H233B |
33 |
All |
|
|
|
| ARB-RD136 |
Nissan H233B |
31 |
All |
|
|
|
| ARB-RD137 |
Nissan R230, IRS |
33 |
3.54 & UP |
|
|
|
| ARB-RD138 |
Land Rover, Banjo, P38A |
24 |
All |
|
|
|
| ARB-RD139 |
AAM 11.5" |
30 |
All |
|
|
|
| ARB-RD141 |
Toyota 8" IFS, 58mm Bearing |
34 |
All |
|
|
|
| ARB-RD142 |
Toyota 8.9", 50mm Bearing |
30 |
All |
|
|
|
| ARB-RD143 |
D44 |
32 |
3.73 & DN |
|
|
|
| ARB-RD144 |
Nissan H260 |
34 |
All |
|
|
|
| ARB-RD145 |
Rockwell 2.5T |
16 |
All |
|
|
|
| ARB-RD146 |
Toyota 10.5" |
36 |
All |
- |
- |
- |
| ARB-RD147 |
D44 |
35 |
3.73 & DN |
|
|
|
| ARB-RD148 |
AAM 760 |
28 |
All |
|
|
|
| ARB-RD149 |
Nissan, M226, 10 bolt RG |
32 |
All |
|
|
|
| ARB-RD150 |
Ford 9.75", C-Clip |
34 |
All |
- |
|
|
| ARB-RD152 |
Toyota 9.5" |
32 |
All |
|
|
|
| ARB-RD153 |
Toyota 8.9", C-Clip, 50mm Bearing |
30 |
- |
- |
|
|
| ARB-RD154 |
Mitsubishi 9.5", Live Axle |
31 |
All |
|
|
|
| ARB-RD155 |
Mitsubishi 9.5", IRS |
33 |
All |
|
|
|
| ARB-RD156 |
Hyundai 9.5", Live Axle |
34 |
All |
|
|
|
| ARB-RD159 |
Nissan M226, 12 bolt RG |
32 |
All |
|
|
|
| ARB-RD166 |
D60HD |
35 |
4.56 & UP |
|
|
|
| ARB-RD167 |
D60HD |
35 |
4.10 & DN |
|
|
|
| ARB-RD193 |
Toyota 8” RR, 12 Bolt RG |
30 |
All |
|
|
|
| ARB-RD196 |
Nissan C200K |
31 |
All |
- |
- |
- |
Note: *RD37 superceded to RD140
**RD60 superseded by RD186
|
