below turning also to fig6 the hinge coupling member 70 includes a body 72 mounted to the frame bracket 40 for pivoting movement on a vertical axis v indicated in fig3 the body 72 includes an upper leg 74 and a lower leg 76 that connect to the upper bracket 42 and lower bracket 44 respectively of the frame bracket 40 a hole 75 in the upper leg 74 is vertically aligned with a hole 77 in the lower leg 76 a vertical hinge arrangement may include an upper hinge pin 78 extending through the hole 75 in the upper leg 74 to connect the upper leg to the upper bracket 42 and a lower hinge pin 80 see fig3 and fig4 extending through the hole 77 in the lower leg 76 to connect the lower leg to the lower bracket 44 the hinge pins 78 80 may be configured as bolts as shown alternatively a single hinge pin may extend through and connect the brackets 42 44 and legs 74 76 the body 72 includes a face 82 on which a bumper or bumper end cap support may be connected which includes a plurality of mounting holes for fasteners not illustrated the hinge coupling member 70 includes a hinge support arm 86 extending forwardly of the body 72 the hinge support arm 86 includes a bore 88 to support the pin 60 and interconnect with the hub 58 of the first hinge member 52 according to the illustrated embodiment of fig2 a hinge assembly 50 including a first hinge member 52 and hinge coupling member 70 is mounted on a.