SEAT COVERS AND OTHER UNSOLVED MYSTERIES

[ARTEMIS]

Could anyone tell me about the seat cover on my truck? I have a 1969 GMC 3/4 ton 4x4 custom 2500 and I haven't seen another seat cover like mine. It has cloth inserts on both sides and a scroll pattern down the middle. It's bench. Other questions I have are my build sheet says the truck came with a 350 $ barrel and the core supports never been switched yet the tune-up sticker says
I-6. I also searched for my 4x4 indicator sticker and found out the stickers from a blazer. It has the description of each gear on the bottom and the pictures of the trucks on top. I also have a metal rod for the throttle linkage from the carb to gas pedal. Any help woul be appreciated thanxx.