Kirkey Rear Seat Mount. Fits Kirkey Series 36, 38, 39, 41, 41V, 47, 55 and 65 eries seats. Constructed using 3/16″ high quality aluminum. Bolts to the rear of the seat and then connects to the roll cage. NEVER mount to sheet metal. Unique design allows bracket to be positioned in different layback angles. Some fabrication required.