Open your driverside door and look at the doorjam sticker. Find on there where it talks about springs. There will be 2 letters under where it says springs. First letter is front spring code, 2nd letter is rear spring code. If first letter is "X", there you go. X springs i believe are rated at 5200lbs. Mike
By the way, congrats on the new truck. Does it have a plow already, or are you getting one? If so what kind?
I just put a Boss 8'2" V plow on it a couple of days ago. With the plow on the truck the lowest part of the plow frame sits 9" off the ground. When the plow is raised it sits 8 3/4" off the ground. Is this normal? Should it drop that much when the plow is raised or do I need to look into air shocks or even another leaf?