Mike; The 1500# GVW weight on my trailers registration indicates the weight of the trailer only and not how much in can carry.

On my truck itself the Factory GCWR can be differ from 9000# to 13500# depending on the axel gear and engine combo.

With my 5.4 engine, same truck, same axel it can differ from 10000# to 13500# based on the gear only. Lie about your gear or change the gear or "door sticker" I guess you could change your Factory GCWR but not your GVW. mike