Here is the curb weight of the 1966 C-30 trucks. I'm sure the 1964's would be of similar weights.

C-30 Stepside Pick-up (Model 3604)...............4,075
C-30 10.5' Panel (Model 3605)....................4,415
C-30 9' Stake (Model 3609).......................4,420
C-30 Chassis Cowl (Model 3602)...................3,005
C-30 Windshield Cowl (Model 3612)................3,175
C-30 Chassis-Cab (Model 3603)....................3,600
C-30 Chassis-Cab (Model 3803)....................3,745

Doug 57
1966 Chevrolet Suburban
"Bilko
All original
In the DITY Gallery
In the Gallery Forum
1966 Chevrolet C-10 LWB Fleetside
1966 Chevrolet C-30 Stepside Pick-up