About 10 years ago when I started skating long distance for fitness, I bought some 10” wide, fancy cam action spring loaded skateboard trucks. They were advertised as the worlds greatest carving trucks.
In truth, trucks this wide are only useful for long distance skating. These are fun to carve on until they get dirty, and then they just don’t work right anymore.
Each time you clean them, they are little bit worse, not quite as smooth, until you decide it was a stupid idea and regular skateboard trucks are superior in almost every way.
But before I figured that out, not only had I bought one $$$ set, but I had won a second set in a contest.
Amazingly, I was able to convert these to a very normal type of (very wide) skateboard truck geometry where I created my own pivot pin, and mated them to a standard Indy base plate.
This was some of the finest Okie machine work you’ve ever seen. I spot faced those castings with a spade bit. LOL
Here’s a little mockup with some masking tape.