ARB Air Locker for Dana 70 arranged on a white background
ARB Air Locker Dana 80 on a white background
Dana 80 selectable locker components on a white background
Dana 70 air locker 35 spline on a white background
ARB locking differential heavy duty arranged on a white background
ARB Air Locker for Dana 70 arranged on a white background
ARB Air Locker Dana 80 on a white background
Dana 80 selectable locker components on a white background
Dana 70 air locker 35 spline on a white background
ARB locking differential heavy duty arranged on a white background

ARB Dana 70/80 Selectable Air Locker - Low Speed, 35 Spline

ARBRD172

$1,499.95
/
Shipping calculated at checkout.

The ARB Dana 70 & Dana 80 Low Speed Air Locker is designed for extreme off-road, towing, and heavy-duty applications, and allows instant engagement at the flip of a switch, giving you complete control in challenging terrain.

Using a pneumatically actuated locking mechanism, the Air Locker completely locks the differential when engaged, preventing axle shafts from turning independently and ensuring maximum traction. When disengaged, it functions like a standard open differential which allows safer handling and reduced driveline wear.

Includes:

  • ARB Dana 70/80 Air Locker differential
  • Dash activation switch
  • Solenoid valve
  • Air line
  • Bulkhead fitting
  • Air compressor required for operation (sold separately).
Specifications
  • Brand: ARB
  • Differential Type: Selectable locking differential
  • Spline Count: 35-spline
  • Shaft Diameter: 1.50"
  • Material: Steel
  • Finish / Color: Silver
  • Activation Type: Pneumatic (air operated)
  • Operating Mode: Locking when engaged, open when disengaged

Rear Axle Applications

  • Dana 70 Full Float – 10.5"
  • 35-spline, 1.50" shaft
  • Gear ratio: 4.56 & up

  • Dana 80 Full Float – 11.5"
  • 35-spline, 1.50" shaft
  • Gear ratio: 4.10 & up

Front Axle Applications

  • Dana 70
  • 35-spline, 1.50" shaft
  • Gear ratio: 4.56 & up
Fitment
Make Model Year Range
Chevrolet C3500 1992–2000
Chevrolet G30 1996
Dodge B350 1993–1994
Dodge B3500 1995–1998
Dodge D250 1992–1993
Dodge Ram 2500 1994–2002
Dodge Ram 3500 1994–2002
Ford E-350 Club Wagon 2003–2005
Ford E-350 Econoline 1992–1998
Ford E-350 Econoline Club Wagon 1992–2002
Ford E-350 Super Duty 1999–2010
Ford F-350 1993–1997
Ford F-350 Super Duty 1999–2016
GMC C3500 1992–2000
GMC K3500 1992–2000

Note: For Dana 80 applications, the Air Locker flange holes must be drilled or reamed to suit 9/16" bolts. Consult your gear supplier to confirm proper application.

Tech Insight

Unlike automatic lockers, the ARB Air Locker only locks when commanded, allowing drivers to maintain steering control, reduce driveline stress, and avoid unnecessary wear. The patented timed locking system delivers rapid engagement and smooth disengagement, while the steel reinforced annular seal ensures reliable operation across extreme temperatures and conditions.

This makes the ARB Air Locker ideal for heavy duty off-road rigs, tow vehicles, rock crawlers, and expedition builds where control and durability matter.

Installation Guide
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