LOT (2) EACH FRAME RAIL ASSEMBLY. FEDLOG INFO - USED ON: CHMMWV 1 1/ 4 TON. GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF SPACER - FRAME (P/ N 5577794); SIDE RAIL ASSEMBLY PLATE (P/ N 5577575); BODY MOUNTING TO FRAME PLATE (P/ N 5594557); ANGLE FRAME SPACER (P/ N 5589202); STEERING GEAR SUPPORT BRACKET (P/ N 5584048).