3550 43550 13550 16' x 6'6 with optional Sides and ramps and carrier3550 optional headboard3550 optional Hyd. tilt and Mesh3550 3 axles and extra body length3550 fitted with sides and ladder rack.3550 with optional 12" sides mesh extension sides and hydraulic tilt3550 With Optional 3rd axle and box section headboard3550 Extra body length, 3. 1300kg axles.