original GM body shim finish
Does anyone have knowledge of what GM used on original body shims for a finish in the 60s and 70s? I always see restored cars using the silver zinc coated shims that are commonly avalable. Original shims appear to have a black or gray phosphate finish. Or do they get tarnished that way from age?
__________________
1970 L78 camaro Cortez silver ralley sport under restoration
1970 L78 camaro cranberry red standard black interior original drivetrain.
|