ARB Dana 60 35 Spline 4.56 Up Air Locking Differential - RD166

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  • ARB 4x4 Accessories | Part Number: ARBRD166
  • Popular Axle Manufacture:Dana
  • Axle Location:Front|Rear
  • Axle Type:Dana 60
  • Fitment:Universal Fit
  • Axle Spline:35 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

5.0 5.0
1 Customer ratings
Instant Traction

I had this locker installed in my Dodge Ram Dana 60s, both front and rear, in the fall of 2008 and have zero complaints or complications. I upgraded my shafts to 35 spline units at the same time to avoid future costs and get ultimate strength. Adding a selectable locker like the ARB gives you instant traction when needed and the convenience of unlocking the unit for better turning radius, less wear/maintenance and maximum control. For vehicles that drive on pavement, this means less tire wear, no chirping, less axle shaft stress and safer operation in low traction situations (ice, rain, etc.) No special diff covers or complicated cables or levers!

from Tulsa, OK |


Question & Answers

3 Answered questions

Does this kit come with an air hose?

Asked by Trent from Tyler, TX on

Hello Trent Yes it has the hose and fittings along with the solenoid to control the air to the unit. Thanks

Answered by Rody from Tyler, TX on

I have just installed 4.88 gears in my 2000 F-250 SD. Will this fit my Dana 50 front diff?

Asked by James from United States on

Hello James, Thank you for the question. This will not fit the Dana 50 axle. The correct ARM Locker part number for the Dana 50 is ARBRD158

Answered by from United States on

Will this locker fit on my dana 60 front reverse from a 350 ford 2001? Thanks

Asked by Shasham from Laredo tx on

Hello Shasham, Thank you for the question. Yes, this will fit the High Pinion Reverse Rotation Dana 60 axle.

Answered by from Laredo tx on


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


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