Yes, Welcome to the 'Bolt, Zeb!
Make sure you visit the other parts of the site, too -- use the menu bar at the top of the page. We have some Tech Tips for dumps, hydraulics, etc you might find useful.
But the guys are right -- Chevrolet didn't offer dump bodies -- they were all after market options that sometimes dealers offered but usually a truck buyer bought the cab and chassis from the dealer and then took it somewhere for whatever body they wanted. The only big truck body available from the factory was a flatbed.
Again, Welcome!
Regards,
John
