Here is a piece of trivia info. With 1946 and older GM trucks you have cab space for a driver, floor shifter, floor parking brake lever and a passenger (yep, sardines in a tin can). Trucks were made for work and economical operation. Comfort was secondary. One of the proud selling points of the new AD truck line was room for 3 men. You could take another man out to the jobsite and save money on gasoline. It also meant you now had space in the cab if there wasn't a third person. You know, having that extra space behind the bench seat can have it's advantages.
I'm done preaching.
