These rear axle bearing pockets fit most Toyota Pickup and 4Runner axles made from 86-95. This bearing pocket is made from 4230 chromoly and allows you to use Trail-Gears rear Toyota or Samurai Rock Assault axle housings with an aftermarket brake kit. No junk yard or used parts are required. Before Trail-Gear made this product you would have to steal the bearing pockets from another rear axle in order to use their Rock Assault housings. Now you can build a completely new axle with no used parts whatsoever (after market disc brake kit required). These bearing pickets are sold individually, two are required to build one rear axle housing.