PTO shaft conversion assembly, for all 9N, 2N, 8N. Replaces and converts older 1-1/8" shaft on all Ford tractors to newer 1-3/8" spline. Assembled and ready to install by removing 4 bolts from 9N733B housing, removing, and installing complete new unit. Includes: new 1-3/8" spline PTO shaft, D9NN703BB seal, 9N715BC bearing, 9N733B housing, 310088 cap, 9N754 bearing retainer rings (2), and C5NN747A gasket. Length 30-7/8".