me too, i work for roadway and we have 2 yard scales

 

The curb weight is the weight of the truck. For the '03 L it is 4670. The GVRW is the total weight with a payload. If you take the GVRW and subtract the curb weight, that will tell you how much you can haul in your L including passangers.

 

So what in the L, makes it as heavy/heavier than my SCREW? Or, what in my SCREW makes it as light as your L?

I know the shell/outer walls to my bed are composite, not metal, and my hood is Aluminum(?) as a magnet wont stick to it.

The L's rims are probably heavier, and then there is a Supercharger, but I would think the Screw would be heavier

I also have a Spray in liner, sub and box, and class 3 hitch, so it is probably a little heavier than it should be stock.

 

The lightning has a heavir transmission, rearend, engine and supercharger components (intercooler tank, h/x pump, actual blower, intercooler, tensioners for blower belt, etc.....)