We recently ran into muscle car collector Bill Wortman while he was looking at brake options for his 1965 Pontiac GTO. He said, "I drive my cars—a lot—and I'd like to increase my GTO's all-around ...

We used a Wide Glide conversion kit from Custom Chrome, Inc. (CCI) to broaden the front of our Dyna Glide. A disc brake spacer was also needed because the bike was equipped with dual front-disc brakes ...

Unlike Chevys and Fords of the era, higher-end '50s domestic marques such as Cadillac aren't as "upgrade friendly" when it comes to adapting modern equipment - namely complete disc brake systems.