When a Ram 2500 Laramie 4x4 owner set out to tow his 32-foot toy hauler, he thought he had the perfect truck until he stumbled upon a wave of concerns that left him asking if he made a costly mistake.

T he moment you climb into a Ram 2500, your sneakers become oil-waxed Lucchese, the airplane snacks squirreled away in your carry-on become T-bone steaks, and you'll suddenly find ...