is located such that latch 138 is not only top heavy but tends to rotate in a clockwise direction in fig3 supported by top edge 142 of plate 130 lower hinge 128 similarly includes two plates 146 148 and a pin 149 pivotally coupling the two plates together these plates and pin are identically arranged to those of the upper hinge hinge plate 146 is bolted to vertical member 134 plate 148 is fixed to door frame 120 and pivots together with the door frame when the door is opened the door hinges are preferably arranged so that the entire door may be removed from the vehicle by lifting the door upward until the hinge pins of the upper and lower hinges are removed from their corresponding hinge plates the operator can stop the vehicle open the door lift the door upward from the bottom and remove the door from vehicle 100 a spring loaded door latch 150 is fixed to the opposite side of the door as hinges 126 128 it has a catch 152 that grasps a rod 154 extending from striker plate 156 striker plate 156 is bolted to vertical member 158 that in turn is bolted to chassis member 160 the engagement of catch 152 and rod 154 prevents the door both from being opened and from being lifted off its hinges when an upward force is applied to the closed door the catch and rod interengage to prevent the door from moving upward while the catch and rod are sufficiently strong to resist the force of one or two people trying to lift the closed door upward off its hinges they may not be sufficient to.