See thread regarding free mods. http://www.ramforumz.com/showthread.php?t=46308Don't know many ways to lighten up a truck. They're build heavy, unlike cars. A few things I could think of are a fiberglass hood, remove the tailgate, install a low capacity fuel cell. Switching to aluminum heads over the stock cast iron will save you a good 50lbs.
I always had to laugh when guys would try and get their cars to weigh less for the track. They would talk about shaving off things that were 5-10 lbs, but weighed 220 racing their car. They could afford to lose 40-50 lbs themelves to make their car faster, lol.Jenny Craig, maybe?