My '69 GMC is pretty much the way it left the factory........Still has the 305V-6, 4spd, and it was shipped as a cab/chassis, so the box bolted in in Aug 69 is Original also

About the only thing I've put on it that isn't stock is a seat cover that I got out of my '71 C-20 when I put new buckets in it to replace the bench. The C-20 was green and the seat cover was blue.............Never could figure out why, but what the heck, the GMC is blue and has blue interior
My '71 C-20 on the other had is far from stock, Originally a Cheyenne with a 350/3spd, is now Cummins powered which is backed by a "Custom" OD trans setup I cooked up here at our shop with a total of 10 spds. I put a hydro-boost on the brakes. I added a stake body and a CB as well.