the truck I had before my 06 was an '02 4x4 with the plain ole regular mirrors which served me well, the gave me a wide FOV which allowed me to adjust them where they needed to be as well as be able to see down on the road where my trailer wheels are, this is very nice when going around curbs etc, as well as normal backing up of the truck, with these tow mirrors that came on my 06 I find them with a much narrower FOV, they will not be adjusted right if you have them set to see your trailer tires, they will be too low to see as yo should. I have hit a couple things because the mirrors simply just can't see what the old regular ones did. also the stupid mirror bubble is one of the things I hate the most, if you adjust your mirrors properly you don't need a bubble!! it is also placed in a location on the mirror that you need the most the upper outside corner. does anyone know if I can put some of the standard mirrors like what comes on the 1/2 tons and still retain the power function??