This tough 4140 heat treated steel spindle works great wherever rule prohibit tubular spindles. The steering arms have a tapered hole for tie rod ends but can be drilled for use with a 5/8" hiem. They are threaded to accept a fabricated Howe brake caliper bracket or will interchange with the 1969 Olds 442 caliper bracket. Fits hubs for 74-81 C10 Truck or 70-73 Impala and Cadillac. Raybestos #5006 or equivelent.