I think Sparky may have it pegged. Bill, check your bed to frame cross mounts on top of the wood blocks. It could be during assembly that the plate shifted and didn't get captured by the bed mounting bolt and vibrated the rest of the way out.


~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)