Yes, till very recently, a large number of pickups were indeed based on the same Isuzu-derived chassis (usually the first generation D-MAX) and shared common body shells, external design elements and interiors. The engines these were equipped with too were from a limited set of choices, usually from Mitsubishi or Isuzu, made/copied by their local partners. The 3025 mm and 3380 mm wheelbases were common to many pickups. Foday is a company that has been known to supply diverse manufacturers with kits, components, or sub-assemblies for pickups.