[oldman3]

Pic 1 I made up this holder that will be welded to the stack pocket. The taillights are 3rd brake lights that I relamped and rewired for running, turn and brake lights. (lights were purchased from J.C. Whitney) The plastic housing for the lights were drilled and screwed to the holder, so they don't move.
Pic 2 Welded to the pocket and lights installed.