So, it's not easy finding nice 62 Merc Monterey tail lights and when you do, you can't afford them. So, I made some 59 Caddy lights work. I know a lot of people use the caddy lights, but they are similar in size to what I already have. Here are the original lights. Faded and cracked So to make this work, I had to replicate the base of the original tail light so that the Caddy light could attach to it and then to the housing. i used 3/8 acrylic, traced the base of the original and cut it out. Made the necessary holes to attach the Caddy base to it. I painted one side of the acrylic with red metal flake clear coat from Home Depot. (Painted it before pictures) Anyway, I attached the Caddy light to the new base and set in to the housing and this is what I got.