An extension for a vehicle having a frame rail and a cross member with a top flange and a bottom flange, with the cross member connected to the frame rail. The extension includes a top bracket having a vertical portion and a top horizontal member, where the top bracket vertical portion has a leading end portion and a trailing end portion. The trailing end portion is adapted to be attached to the frame rail and the top horizontal member is adapted to engage the cross member top flange. An outer plate is attached to the leading end portion of the vertical portion of the top bracket and has a middle horizontal member. A spacer block is positioned between and attached to the top and middle horizontal members. A bottom bracket has a vertical portion and a bottom horizontal member. The bottom bracket vertical portion is attached to the outer plate and the bottom horizontal member is adapted to be attached to the bottom flange of the cross member.