The ADX Florence Supermax federal prison is just 100 miles to the south of this self-service wrecking yard, but it opened several years after this truck was built. The garish lettering and striping has the look of a dealer-installed option package.
Chrysler sold rebadged Mitsubishi pickups for decades, as the Plymouth Arrow and Dodge D-50/Ram 50. When Mitsubishi began selling vehicles under their own brand in the United States in 1982, the Triton pickup got the Mighty Max name.
The Dodge Ram 50 always outsold its near-identical Mighty Max twin, but the debut of the all-Detroit Dakota in 1987 cut into Ram 50 sales; by 1995, truck shoppers who wanted a Mitsubishi pickup had no choice but the Mighty Max. After 1996, the Mighty Max was mighty gone.
This one is quite solid and doesn't appear to have been wrecked, and the odometer shows a surprisingly low mileage figure for a 26-year-old Japanese pickup. The 2.4-liter 4G54 four-cylinder engine is gone, purchased by a junkyard shopper. This engine family went into everything from the Mitsubishi Galant to the Hyundai Sonata, not to mention the Chery V5.
The sunroof has an aftermarket look, which fits with the SUPER MAX dealer-option theory.
Mitsubishi trucks were pitched as cheap, cheap, cheap in the United States.