Mike,
Its a 5 speed (no 2 speed splitter). I am a big fan of your trucks. I also have a 57 lcf with an almost perfect body, a 72 427 tractor, a 56 1/2 ton, a 63 suburban, 50 1/2 ton and an SSR for the truck side. I am looking for a 56/57 10500. My dad and his brothers had a trucking company starting right before WW II. They ran Chevy tractors and later moved to the big KW's starting in 70's. but I loved those old Chevys and still do. They had a 56 10500 with a 322 and a 59 with the 348. According to my uncle that 348 was the horse. I had my eye on that truck for twenty years and knew it would come up for sale one day and I was lucky enough to get it. I originally intended to convert it to a tractor but decided it was to nice to do that. Hence the 72 tractor. Geary Trussell