Those who enjoy heading off the beaten track in their 4×4 know that even the most familiar tracks can present you with unexpected conditions. Whether you’re up against a steep incline, uneven & rocky terrain or a slippery muddy track, being able to take advantage of traction is one of the most important elements.In a vehicle with open differentials in 4WD mode, drive can only go to two wheels at any given time. At the flick of a switch, an ARB Air Locker can send equal drive to both wheels on an axle allowing you to take advantage of the wheels that have traction and push forward along the track. Specs:Number of hub profile teeth: 32,Transmission: All,Rear axle: Dana 44 / M220,Provides 100% traction on demand without affecting on road drivability or driveline wear,Ultra durable and extremely strong - only the highest quality materials used in construction,Incredibly simple yet effective design that employs minimal moving parts, thereby ensuring maximum reliability,Easy installation and maintenance & no special tools, skills or additives required,Air compressor (sold separately) provides convenient, reliable source of air for inflating tyres, camping and leisure equipment, Notes:Fits ONLY Sahara and Sport models with Dana 44 / M220 differentials,Fits all manual transmission and automatic transmission with LSD system,Non-standard aplication,