For Use With Dana 60 Full Float 35 Spline Axles, with 4.10 And Down Gears. Replace Old #RD36 At the flick of a dash-mounted switch, compressed air is delivered to the seal housing assembly via a nylon air line. 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. Brand ARB Manufacturer part number RD167 UPC / GTIN 881348012227 Weight 42.80 lb Dimensions (L × W × H) 10.6 × 10.6 × 11 in Category Engine & Drivetrain Condition New — genuine brand-name part Genuine brand-name part, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Verify fitment with the manufacturer part number above; not sure? Send us your VIN and we’ll confirm before you order. 30-day returns on unused parts.