Thanks for all the replies!! The truck is a DRW. I'm used to keeping my weight under the axle ratings and mostly the GVWR that's why I moved up to a 1 ton Dully from a 3/4 ton single which did a fine job pulling our 5th wheel. Recently I've had to replace the brakes and chose to upgrade to HD/towing rotors and pads. The rear upgrade will be here in a couple of days. The Camper sticker seems to say that it adds the weight of the propane and 50 gal of water. I will look inside the glove box for more info on the weights. My other concern was keeping the truck level and stable I have been reading a couple post on different rear spring support addons, any suggestions? Thanks for the heads up on the Truck Camper Warehouse, maybe the wife and I will make a visit soon. thanks.