These Genuine KOYO carrier bearings are used to install an ARB locker with 50mm carrier bearing journals into a 1990 or older 9.5″ Land Cruiser diff. If you are installing an RD142 or RD153 into a 40 or 60 series land cruiser diff these are the carrier bearings you need! These are also used to install a V6″ 8″ carrier (RD132, etc.) into a 4cyl 8″ housing. Sold as one pair of Bearings and Races.