ARB RD245 Air Locker Dana M220 32-Spline Rear Jeep JL Wrangler/Gladiator/Bronco

Vehicle Fitment

• 2018-2026 Jeep Wrangler JL (Sport, Sport S, Willys, Willys Sport, Sahara -- Non-Rubicon, 2-Door and 4-Door)
• 2018-2026 Jeep Wrangler JL Rubicon (2-Door and 4-Door -- requires aftermarket 32-spline axle shafts)
• 2020-2026 Jeep Gladiator JT (Sport, Sport S, Overland, Mojave, Willys -- Non-Rubicon)
• 2020 Jeep Gladiator JT Rubicon (requires aftermarket 32-spline axle shafts)
• 2021-2025 Ford Bronco (Base, Big Bend, Black Diamond, Outer Banks, Badlands, Wildtrak -- without Sasquatch Package, 2-Door and 4-Door)
• 2019-2025 Ford Ranger (XL, XLT, Lariat -- 4-Door)

Fitment Notes

• Rear axle only -- Dana M220, 32-spline, all gear ratios
• JL / JT Rubicon: requires aftermarket 32-spline axle shafts -- OE Rubicon shafts are 35-spline
• Does not fit Ford Bronco with Sasquatch Package
• Air compressor required for operation -- sold separately
• Professional installation strongly recommended

Features

• 100% on-demand differential lock -- activates at the flip of a switch from the driver's seat
• Engages and disengages at any speed
• Unlocked: functions as a standard open differential -- no on-road penalty
• Patented timed locking mechanism -- high strength, ultra-fast unlocking
• Two-piece design with forged gears -- minimal moving parts
• Billet machined anodized aluminum solenoid -- IP54 moisture and dust sealed
• Steel reinforced elastomer bonded annular seal -- rated for extreme temperatures
• 12V pneumatic actuation
• Designed and manufactured in Australia
• 5-year limited warranty

Specifications

• Axle: Dana M220
• Position: Rear
• Spline count: 32
• Axle shaft diameter: 35.8mm (1.41 in.)
• Gear ratios: All
• Ring gear OD: 220mm (8.661 in.)
• Ring gear ID: 134.66mm (5.302 in.)
• Ring gear bolt pattern: 10 bolts on 157.8mm (6.213 in.)
• Actuation: 12V pneumatic
• UPC: 09332018061058
• Shipping dimensions: 12" L x 12" W x 12" H
• Warranty: 5 years limited

Included Components

• 1x ARB Air Locker differential (Dana M220, 32-spline)
• 1x Activation switch
• 1x Solenoid valve
• 1x Air line and bulkhead fitting

Product Description

The ARB RD245 is an Air Locker differential for the Dana M220 rear axle in the 2018-2026 Jeep Wrangler JL, 2020-2026 Gladiator JT, 2021-2025 Ford Bronco (non-Sasquatch), and 2019-2025 Ford Ranger. When activated, both rear wheels are locked to rotate at the same speed regardless of traction -- delivering maximum tractive force on any surface. When unlocked, it functions as a standard open differential with no on-road penalty.

Activation is via a 12V pneumatic solenoid controlled by a cab-mounted switch, powered by an ARB air compressor sold separately. The locker can be engaged or disengaged at any speed. Rubicon models require aftermarket 32-spline axle shafts, as factory Rubicon shafts are 35-spline. Bronco fitment excludes Sasquatch Package vehicles. Backed by ARB's 5-year limited warranty.