ARB RD119 Ford 9 Inch 31 Spline Air Locking Differential

Compatible with: 1967-1973 Ford Mustang 1967-1979 Mercury Cougar 1966-1969 Mercury Comet 1964 Mercury Cyclone 1966-1971 Ford Fairlane 1965-1978 Ford LTD 1968-1976 Ford Torino 1957-1979 Ford Ranchero 1975-1980 Ford Granada 1977-1980 Lincoln Versailles 1957-1980 Ford Thunderbird 1959-1974 Ford Galaxie 1957-1986 Ford F100 & F150 1978-1986 Ford Bronco 1968-1986 Ford E150 Van Trophy Trucks Rockcrawlers Desert Race Vehicles Stadium Trucks A relentless commitment to research and design, the use of quality materials, and an uncompromising approach to manufacturing have all contributed to the Air Locker's success in over 100 countries worldwide. Designed and manufactured in Australia, ARB Air Lockers will enhance the traction of your 4-4 in just about any terrain, whether it's rock, clay, gravel, sand, snow or mud. Now with a state-of-the-art two-piece design available right across the range, forged gears for the ultimate in strength and durability, and an industry-leading five-year warranty, ARB Air Lockers are better built and better backed than ever before. Strength, durability and resistance to fatigue in all Air Locker components is paramount. With phenomenal forces being applied to the side and pinion gears within the differential, ARB has invested heavily in the application of forged gears, typically found in heavy duty commercial, race and agricultural transmissions. When combined with ARB's patented 'timed gear' design, the resulting strength of the whole assembly is amplified. Housing this superior internal gear train in a two-piece case brings further benefits. Machining a case from two-pieces instead of three results in a much higher dimensional accuracy of the finished assembly and has allowed ARB Engineers to improve the design of other elements, resulting in a reduction of moving parts, increased strength and a more responsive activation.