Originally Posted by jkeaton

My 05 had the towing package, the build sheet states it has: trailer tow group (don't know what that means exactly), heavy duty cooling, heavy duty suspension (HA!), front and rear heavy duty shocks (HA! again), 3.55 rear axle (why a 3.92 did not come standard with the tow package is beyond me), transmission oil cooler, power steering cooler, class IV receiver hitch, 7 pin wiring harness. I'm sure thsat did not change much between 2nd and 3rd gens. I'm also not sure what a build sheet w/o towing package looks like, it might also state the "heavy duty" suspension stuff as well. But, we all know there is nothing heavy duty about the suspension on these trucks, with or without a tow package.