Thanks Joseph, Duane and Bill.
Joseph......lowering the stance is very easy. Take all of the wheels off, trim the metal pin off and re-glue the wheels back on. I use a makeshift jig and level the model out on a flat board and glue one wheel on at a time centering the wheel within the wheel well. Also this step will allow you to lower or raise the model depending where you glue the wheel. There is generally enough surface area on the chassis to glue the wheel in a more accurate postion. Sounds confusing but it's hard to try to explain this in writing.