ARB Dana 44 30 Spline 3.92 Ratio Up Air Locking Differential - RD116 |

ARB Dana 44 30 Spline 3.92 Ratio Up Air Locking Differential - RD116

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  • ARB 4x4 Accessories | Part Number: ARBRD116
  • Popular Axle Manufacture:Dana
  • Axle Location:Rear|Front
  • Axle Type:Dana 44
  • Fitment:Universal Fit
  • Axle Spline:30 Splines
  • Differential Type:Selectable Locker


The ARB Air Locker is a pneumatic locking differential that uses air to facilitate the locking of both axles. This action converts your differential from a conventional open to a full spool type axle supplying 100% power to both wheels to keep you going through the worst terrain. ARB onboard air compressor required to activate Air Lockers. Sold Separately.

Customer Reviews

4.7 4.7
3 Customer ratings
5.0 Arb locker

Fast and just what i ordered. also ordered e locker. No one seems to know what shims fit them at 4wparts tho.

from yakima washington |
5.0 The Gold Standard

The ARB is the best of the best selectable locker out there. You really do get what you pay for. The only draw backs are the cost and the installation, I would not recommend a beginner even try and intsall one. You also need to have and maintain an air source on your vehicle, but that can be a pro as you will now have on board air for other things. But the ARB is really in a class by itself based on quality and reliability.

from Newberg, OR |
4.0 arb air locker

had an issue when in deep snow and ice, first time out, the ice was crushing against the skid plate up against the line, causing a tear in the air line, then loosing both and getting hung real good....but other than that they have worked flawlessly so far.

from indanapolis,in |


Question & Answers

4 Answered questions

Q: Will this work in my 2004 ram 1500 5.7L front axle? Currently I have 3.55 gears, and am converting to 4.10 gears and would like to have a selectable locker in the front end to go with a Detroit locker for the 9.25" rear. Answer this question

A: Thanks for the inquiry Jesse, the ARB 4x4 Accessories Dana 44 30 Spline 3.92 Up Air Locking Differential part # ARBRD116 this is correct for the front axle.

Answered by RK on 07/28/2015

Q: have a 1978 ford f-150 high pinion dana 44. will the OE carrier bearings work with the ARB carrier? going to be running 5.13 gears.. Answer this question

A: Hello The ARB does take larger bearings than stock which come with the unit. So you will get the bearing and shims in the box with the locker. Thanks

Answered by Rody on 04/30/2015

Q: Does this come with carrier bearings? Answer this question

A: Austin, This unit does not include carrier bearings. Thanks for your question.

Answered by RK on 04/02/2015

Q: will this product work with my 456 gearing Answer this question

A: Hello Kirk, The ARB 4x4 Accessories Dana 44 30 Spline 3.92 Up Air Locking Differential will allow you to run a 4.56 gear ratio.

Answered by Dave on 12/03/2014


ARB has been manufacturing 4x4 parts for over 40 years. ARB Air Lockers will amplify the traction of your 4x4 on challenging trails. They give the off-road driver what she needs in traction, control and performance. ARB believes in its products so it offers a five year, unlimited mile warranty across the air locker range. ARB 4x4 Accessories includes the suspension system brand Old Man Emu, maker of premium off-road shock absorbers. Old Man Emu premium shocks are developed and tuned specifically for each vehicle application. They come complete with vehicle specific mounting kits for fuss free installation. ARB parts are all developed, engineered and fabricated in-house in Australia. Shop ARB 4x4 Accessories Now