GMC's had RR Leals and Chevys Coils, Right?

[Already Gone]

I have always been under the assumption that GMC's had rear leaf springs as standard and coils as an option an and Chevys the exact opposite. Today I saw a 1969 GMC truck with factory coils and nothing showing on the spid as I thought a GMC with coils would show as an option on the spid. Its an Oshawa Canadian built truck for the Canadian market if that made a difference. The fellow that owns the rucks told me that GMC's built at USvplants for the US maket would have leafs and coils could be ordered and the opposite for Chevys in the US. He said all Cabnadian built truck either GMC's or Chevys came with coils. Pics are this mentined truck.