the shape of the fender fit the buck Aad welded a 5mm round
the edge of the fender. We bent a pice of aluminum tube to fit
the buck and then cut it in half with the bandsaw. The ends
were rounded with a wooden hammer on a steel dolly. Aad welded
tha half pipe onto the fender creating a tunnel for the wires
of the taillight and adding a lot of strength. Just to see how
far he could go with shaping the aluminum he polished the whole
thing, no filler required!