RDS Fuel and Toolbox Combo - 51-Gallon Capacity, Model# 72747 Fits some short beds; please measure before ordering Meets DOT standards Diesel install kits (Item#s 3490901, 3490902 and 43748), are also available (sold separately) It is the user&#39;s responsibility to comply with local, state and federal requirements pertaining to safe transportation, loading and discharging of tank contents ot intended to be used for gasoline