primo 
2007 Toyota Tundra Double Cab SR5 4dr Double Cab 4WD SB (5.7L 8cyl 6A)
Worst riding truck I've ever driven
  I have owned or worked out of 14 different trucks in the last 10 years and can safely say that this vehicle has by far the worst ride of them all. The amount of reverberation from the rear of the truck on concrete roads is insane. Hitting a speed bump at 10mph causes shockwaves to travel up to the front of the truck for 5 seconds while the bed bounces up and down like a diving board. This problem is supposedly only confined to the DC models so do yourself, and your pancreas, a favor and get the crew- max. Toyota has been told repeatedly about the ride issues with the DCs and still refuses to aknowledge it. I will be trading in this back killer as soon as I can.