The thirty-one Lt-f500f Quad Runner 4wd 1999 (x) Usa (e03) Quadrunner Quad-runn Rear Axle Housing (model K1/k2) component parts are all listed in this schematic.
The lowest price component in this Rear Axle Housing (model K1/k2) parts-list fiche is the 08331-4155a.
In this schematic the "Bearing" is used most often.