So I am not a NASCAR guy, but I have read and heard that NASCAR race cars run a C10 style trailing arm setup. Having never seen on before in person, I couldn't confirm nor deny this myself.
On Friday, a company in my building sponsors a NASCAR style race team and they set up in the parking lot. I went over and crawled under it to see what's what.
I was a little shocked to see how similar it was to the factory truck trailing arm.
The adjustable trailing arm height and corresponding panhard bar were very cool.
I'm sure this isn't new to most in this thread, but I found it interesting.