I know a 3500 is heavier than a 2500... . But by how much?? Am trying to compare some drag strip results with a friend of mines truck. His is an 01 3500 QC SLT+ and mine is a 99 2500 QC SB SLT. Both trucks are 2wd 5 speeds. His is either ALOT heavier than mine or my truck runs damn good for just having an EZ box in it. We are both expierienced(sp lol) Gear slammers... the smoke pedal never leaves the floor. Thanks for any Input!