I think the first company to actively market that design to off-roaders was, oh crap, I forgot! The polyurethane company out of AZ. What’s their name? They built that crazy FC (forward control) Jeep for SEMA a few years back.
Makes me think of the color purple.
Comon’ I know you know.
Not Prothane or Energy Suspension, not Poly Performance.
Anyway, we also sell a version as our #3406