Though most of the first design Blazers came with a passenger seat, it was still an extra cost factory option. Originally created by GM with encouragement from the US Postal Service, it was felt they would be just right for mail delivery in a 2-wheel drive version. Most, but not all, other buyers wanted this right side seat and paid the extra cost!
Pictured is an all original seat in a position that allowed an extra passenger to reach another option, the rear seat. This non-folding passenger seat moves forward something like the two door Suburbans of the 1940’s through mid 1960’s.