I love IH's old trucks from back in the 50's. They'd build about ANYTHING anybody wanted. Saw an ad in the latest Red Power Mag. of a 1959 R-192 single axle semi-tractor, Rare power steering option! 450 cid-6 cyl. engine, 5+2 transmission & air brakes of course. SINGLE PERSON CAB, I bet it's less than three feet from door-to-door, been restored/refurb'd, IMRON paint, runs out fine....doesn't say how many miles, only $14,500 picked up in Indiana.
Been my experience that a 450-6 in a Binder can burn at least 12-15 gallons of gas per hour while cruising at a leisurely 50-55 mph depending on load & gearing. The old Loadstar I drove one winter had a 475 cid V-8 with a tiny little Holley 2 bbl carb and I'd get three to three and a quarter MPG trying to run 62 mph. The 450-6 would have a real hard time trying to keep up with the V-8. It only had a 1 bbl.
A good IH truck mechanic told Me one time that IH never built ANY two trucks alike....even for companies like Schnieder & JB Hunt who ordered hundreds at a time, without the line set ticket You had NO idea what components You needed to repair things like brakes, suspensions, transmissions, etc.
WYATT - I bet that white brush truck has a 392 V-8 in it. A 345 at the very least. You see old IH brush trucks posted for sale in RPM every once in a while, Some may even have 10,000 miles on them!
And My Mom's got a picture of Our first St. Bernard puppy, MACK, in front of a brand new 1960 IH pickup just like the one Brian posted with My Dad & the Neighbor holding the pup. Neighbor had just picked the truck up and was showing it off. Same color even.