Photo: GMfleet
GMC Seirra 3500 HD 23,200lbs
Even though it may not be the strongest truck on the list, the GMC Sierra 3500 Heavy Duty, would have to be my personal favorite. Something about the looks of this truck does it for me. It uses the same 6.6L Duramax Diesel that powers the Silverado 3500HD putting out 397hp and 785lb-ft of torque and has the same towing capacity of 23,200lbs so its no slouch. The Allison transmissions that are standard in both Chevy and GMC models are designed with towing in mind, making things like downhill downshifting perform seamlessly.