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 / Dana 80 35-Spline Air Locker Differential

RD172

$1,499.95
/
Shipping calculated at checkout.

The ARB Dana 70 / Dana 80 35-Spline Air Locker Differential provides selectable traction for compatible heavy-duty Dana 70 and Dana 80 axle applications. The pneumatically actuated locker allows the differential to operate open when unlocked, then locks both axle shafts together when engaged for increased traction in off-road, towing, and heavy-duty applications.

This 35-spline Air Locker is designed around 1.50" axle shafts and covers specific Dana 70 front and rear applications along with Dana 80 rear applications. Gear-ratio requirements vary by axle, so identify the axle platform, position, spline count, and gear ratio before ordering. A compatible ARB air compressor is required separately to operate the locker.

Includes:

  • (1) ARB Dana 70 / Dana 80 Air Locker Differential
  • Dash Activation Switch
  • Solenoid Valve
  • Air Line
  • Bulkhead Fitting

Note:

  • Compatible ARB air compressor required for operation and sold separately.
  • Dana 80 applications require the Air Locker flange holes to be drilled or reamed for 9/16" ring gear bolts.
  • Verify axle platform, axle position, 35-spline shaft configuration, and gear ratio before ordering.
Specifications
Specification Details
Manufacturer ARB
Product Type Selectable Locker Differential
Axle Platforms Dana 70 / Dana 80
Axle Shaft Spline Count 35-Spline
Axle Shaft Diameter 1.50"
Locker Type Selectable Air Locker
Activation Pneumatic
Unlocked Operation Open Differential
Material Steel
Finish / Color Silver
Air Compressor Required – Sold Separately
Fitment
Axle Position Configuration Gear Ratio
Dana 70 Full Float Rear 10.5" / 35-Spline / 1.50" Shaft 4.56 & Up
Dana 70 Front 35-Spline / 1.50" Shaft 4.56 & Up
Dana 80 Full Float Rear 11.5" / 35-Spline / 1.50" Shaft 4.10 & Up

Fitment Notes:

  • Dana 70 applications require 35-spline, 1.50" axle shafts and 4.56-and-up gearing.
  • Dana 80 rear applications require 35-spline, 1.50" axle shafts and 4.10-and-up gearing.
  • Dana 80 applications require the Air Locker flange holes to be drilled or reamed to accept 9/16" ring gear bolts.
  • For custom axle builds and swaps, identify fitment by axle configuration rather than the original vehicle application.
  • Confirm the ring gear and differential configuration before installation.
FAQ

What axles does this ARB Air Locker fit?

It is designed for specific 35-spline Dana 70 front and rear applications and Dana 80 full-float rear applications using 1.50" axle shafts.

What gear ratios work with the Dana 70 application?

The supplied application information specifies 4.56-and-up gear ratios for both Dana 70 front and Dana 70 full-float rear applications.

What gear ratios work with the Dana 80 application?

The Dana 80 full-float rear application is specified for 4.10-and-up gear ratios.

Does the Dana 80 application require modification?

Yes. The Air Locker flange holes must be drilled or reamed to accommodate the 9/16" ring gear bolts used in the Dana 80 application.

Does the ARB Air Locker require a compressor?

Yes. A compatible ARB air compressor is required to pneumatically engage the locker and is sold separately.

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