ARB Airlocker 8.9In 30Spl 3.73&Up Gm 12 Bolt S/N

With our improved two piece design available right across the range, along with the addition of forged gears and an industry leading five year warranty, ARB Air Lockers are now better built and better backed than ever before. Created to provide 100 percent traction on demand, without sacrificing any of your vehicles highway driving performance, ARB Air Lockers employ a 12 volt ARB Air Compressor designed to activate (and deactivate) a solid and durable locking mechanism inside the differential. This gives you the traction you need, when you need it, all at the flip of a switch and all within the comfort of the drivers seat. The advantage of the ARB Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates just like a conventional open differential. In addition to providing outright improvements to a 4x4s off road capabilities, the Air Locker offers significant environmental benefits. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact. ARB Air Locker Differential; Shaft Spline 30; Ratio 3.73 And Up; GM 12 Bolt 8.9 in.; GM 12 BOLT S/N.... Fitment: 1970 Chevrolet G10 Van Base 1970 Chevrolet G10 Van Sportvan 1970 Chevrolet K10 Pickup Base 1970 GMC Jimmy Base 1971 Chevrolet G10 Van Base 1971 Chevrolet G10 Van Sportvan 1971 Chevrolet K10 Pickup Base 1971 GMC Jimmy Base 1972 Chevrolet G10 Van Base 1972 Chevrolet G10 Van Sportvan 1972 Chevrolet K10 Pickup Base 1972 GMC Jimmy Base 1973 Chevrolet G10 Van Base 1973 Chevrolet G10 Van Sportvan 1973 Chevrolet K10 Pickup Base 1973 Chevrolet K10 Suburban Base 1973 GMC Jimmy Base 1973 GMC K15/K1500 Suburban Base 1974 Chevrolet G10 Van Base 1974 Chevrolet G10 Van Sportvan 1974 Chevrolet K10 Pickup Base 1974 Chevrolet K10 Suburban Base 1974 GMC Jimmy Base 1974 GMC K15/K1500 Suburban Base 1975 Chevrolet G10 Beauville 1975 Chevrolet G10 Chevy Van 1975 Chevrolet G10 Sportvan 1975 Chevrolet K10 Cheyenne 1975 Chevrolet K10 Custom Deluxe 1975 Chevrolet K10 Scottsdale 1975 Chevrolet K10 Silverado 1975 Chevrolet K10 Suburban Custom Deluxe 1975 Chevrolet K10 Suburban Scottsdale 1975 Chevrolet K10 Suburban Silverado 1975 Chevrolet K5 Blazer Cheyenne 1975 Chevrolet K5 Blazer Custom Deluxe 1975 GMC Jimmy Base 1975 GMC Jimmy High Sierra 1975 GMC Jimmy Sierra Classic 1975 GMC Jimmy Sierra Grande 1975 GMC K15 Suburban Base 1975 GMC K15 Suburban High Sierra 1975 GMC K15 Suburban Sierra Classic 1975 GMC K15 Suburban Sierra Grande 1976 Chevrolet G10 Beauville 1976 Chevrolet G10 Chevy Van 1976 Chevrolet G10 Sportvan 1976 Chevrolet K10 Cheyenne 1976 Chevrolet K10 Custom Deluxe 1976 Chevrolet K10 Scottsdale 1976 Chevrolet K10 Silverado 1976 Chevrolet K10 Suburban Custom Deluxe 1976 Chevrolet K10 Suburban Scottsdale 1976 Chevrolet K10 Suburban Silverado 1976 Chevrolet K5 Blazer Base 1976 Chevrolet K5 Blazer Cheyenne 1976 GMC Jimmy Base 1976 GMC Jimmy High Sierra 1976 GMC Jimmy Sierra Classic 1976 GMC Jimmy Sierra Grande 1976 GMC K15 Suburban Base 1976 GMC K15 Suburban High Sierra 1976 GMC K15 Suburban Sierra Classic 1976 GMC K15 Suburban Sierra Grande 1977 Chevrolet G10 Beauville 1977 Chevrolet G10 Chevy Van 1977 Chevrolet G10 Sportvan 1977 Chevrolet K10 Cheyenne 1977 Chevrolet K10 Custom Deluxe 1977 Chevrolet K10 Scottsdale 1977 Chevrolet K10 Silverado 1977 Chevrolet K10 Suburban Custom Deluxe 1977 Chevrolet K10 Suburban Scottsdale 1977 Chevrolet K10 Suburban Silverado 1977 Chevrolet K5 Blazer Cheyenne 1977 Chevrolet K5 Blazer Custom Deluxe 1977 GMC Jimmy Base 1977 GMC Jimmy High Sierra 1977 GMC Jimmy Sierra Classic 1977 GMC Jimmy Sierra Grande 1977 GMC K15 Suburban Base 1977 GMC K15 Suburban High Sierra 1977 GMC K15 Suburban Sierra Classic 1977 GMC K15 Suburban Sierra Grande 1978 Chevrolet G10 Beauville 1978 Chevrolet G10 Chevy Van 1978 Chevrolet G10 Sportvan 1978 Chevrolet K10 Cheyenne 1978 Chevrolet K10 Custom Deluxe 1978 Chevrolet K10 Scottsdale 1978 Chevrolet K10 Silverado 1978 Chevrolet K10 Suburban Custom Deluxe 1978 Chevrolet K10 Suburban Scottsdale 1978 Chevrolet K5 Blazer Cheyenne 1978 Chevrolet K5 Blazer Custom Deluxe 1978 Chevrolet K5 Blazer Silverado 1978 GMC Jimmy Base 1978 GMC Jimmy High Sierra 1978 GMC Jimmy Sierra Classic 1978 GMC Jimmy Sierra Grande 1978 GMC Jimmy Street Coupe 1978 GMC K15 Suburban Base 1978 GMC K15 Suburban High Sierra 1978 GMC K15 Suburban Sierra Classic 1978 GMC K15 Suburban Sierra Grande 1979 Chevrolet G10 Beauville 1979 Chevrolet G10 Chevy Van 1979 Chevrolet G10 Sportvan 1979 Chevrolet K10 Cheyenne 1979 Chevrolet K10 Custom Deluxe 1979 Chevrolet K10 Scottsdale 1979 Chevrolet K10 Silverado 1979 Chevrolet K10 Suburban Custom Deluxe 1979 Chevrolet K10 Suburban Scottsdale 1979 Chevrolet K10 Suburban Silverado 1979 Chevrolet K5 Blazer Cheyenne 1979 Chevrolet K5 Blazer Custom Deluxe 1979 GMC Jimmy Base 1979 GMC Jimmy High Sierra 1979 GMC Jimmy Sierra Classic 1979 GMC Jimmy Sierra Grande 1979 GMC Jimmy Street Coupe 1980 Chevrolet G10 Beauville 1980 Chevrolet G10 Chevy Van 1980 Chevrolet G10 Sportvan 1980 Chevrolet K10 Cheyenne 1980 Chevrolet K10 Custom Deluxe 1980 Chevrolet K10 Scottsdale 1980 Chevrolet K10 Silverado 1980 Chevrolet K10 Suburban Custom Deluxe 1980 Chevrolet K10 Suburban Scottsdale 1980 Chevrolet K10 Suburban Silverado 1980 Chevrolet K5 Blazer Cheyenne 1980 Chevrolet K5 Blazer Custom Deluxe 1980 Chevrolet K5 Blazer Silverado 1980 GMC Jimmy Base 1980 GMC Jimmy High Sierra 1980 GMC Jimmy Sierra Classic 1980 GMC Jimmy Sierra Grande 1980 GMC Jimmy Street Coupe 1981 Chevrolet G10 Beauville 1981 Chevrolet G10 Bonaventure 1981 Chevrolet G10 Chevy Van 1981 Chevrolet G10 Sportvan 1981 Chevrolet K10 Cheyenne 1981 Chevrolet K10 Custom 1981 Chevrolet K10 Deluxe 1981 Chevrolet K10 Scottsdale 1981 Chevrolet K10 Silverado 1981 Chevrolet K10 Suburban Custom 1981 Chevrolet K10 Suburban Deluxe 1981 Chevrolet K5 Blazer Custom 1981 Chevrolet K5 Blazer Deluxe 1981 Chevrolet K5 Blazer Silverado 1981 GMC Jimmy Base 1981 GMC Jimmy High Sierra 1981 GMC Jimmy Sierra Classic 1981 GMC Jimmy Sierra Grande 1981 GMC Jimmy Street Coupe 1982 Chevrolet G10 Beauville 1982 Chevrolet G10 Bonaventure 1982 Chevrolet G10 Chevy Van 1982 Chevrolet G10 Sportvan 1982 Chevrolet K10 Custom 1982 Chevrolet K10 Scottsdale 1982 Chevrolet K10 Silverado 1982 Chevrolet K10 Suburban Custom 1982 Chevrolet K10 Suburban Scottsdale 1982 Chevrolet K10 Suburban Silverado 1982 Chevrolet K5 Blazer Custom 1982 Chevrolet K5 Blazer Silverado 1982 GMC Jimmy Base 1982 GMC Jimmy High Sierra 1982 GMC Jimmy Sierra Classic 1982 GMC Jimmy Sierra Grande 1982 GMC Jimmy Street Coupe