There was a 1972 IHC 1600 series pickup with the long wheelbase at the junkyard ,that they dragged out of the "line up" and decided to made a crude flatbed for it out of two shorter ones off other pickups that were diamond plated..they added a winch and made some tilt down ramps for it ,and used it to haul junkers in with..
It had a 392 V8 and a 5 speed,I think it was factory,nothing looked hacked,like the floor where the shifter came thru it,and it was geared pretty low,about 60 mph was it for top speed on a highway,revving at 3600 rpms..
The truck came from TX originally,how it ended up here was a mystery,I guess whoever owned it decided to junk it despite it being very rust free and solid,and less than 100K on it too--it was at the junkyard when it was bought by a new owner,and when he found titles to many of the vehicles there,he started picking out the better ones and did restorations on them..this truck was unmolested inside and had a nice seat & dash too,all original..he was pleased when he found it had a good title ..
That truck went right along,and first gear was granny low,the thing would lift the front wheels up if you dumped the clutch too fast!..it hauled cars better than an 1970 F-350 with a beaver tail and that truck was the one the drivers preferred to haul cars in with,especially if they were not close by,it had much better handling & better tires..
The boss once took it to VA to pick up an old car he needed for parts,said it not only made it there and back,it actually wasn't that uncomfortable to drive all that distance...he did say he had to stop at an ATM to get more money for gas though,it liked to guzzle!..