From a front view the easiest way to tell '06 models from the '05 is by checking out the Ram insignia. On the '05, its mounted on the hood; while on the '06 its been moved south and now resides mid-grill.
The standard wheels and tires barely register in the huge trapezoidal wheel wells. Which gives the Mega Cab a gawky kid-in-flood-pants look. It shouldnt be allowed off the showroom floor without bigger wheels and tires.
The Ram Mega Cab is available in 1500, 2500 and 3500 (dually) models. All are built on the Ram heavy-duty platform. Two trim levels SLT and Laramie are available with all three models.