[srboard]

Sorry to bump an old thread.

Does anyone know if the G60 Helper Springs were available only on the C10 half-ton versions? I acquired my grandpa's '67 Chevy C10 Long bed and he had bought a second frame. The truck's frame doesn't have the helper springs but the second frame does. I'm trying to determine if the frame is a C10 or a C20. Sadly there are no hubs or rear axles so the obvious 8-lug determination factor is long gone.

Thanks for any help anyone can provide.

Stephen