ARB, Air Locker, for 35 Spline Ford 9

Locking differentials have been available for years, but were always a compromise; performing well either off the road or on the road - but not on both. The ARB Air Locker provides normal differential action on the street - maintaining safe, predictable handling. An ARB Air Locker differential will drive out of the most difficult situations. Easy-to-follow installation instructions are included in the kit. ARB air lockers are covered by a 12 Month or 12,000 mile limited warranty. For the Ford 9 axle and used with all gear ratio's.