I have a stock 2006 duramax that I need to convert to coilover front suspension. It will be driven on road 90% of the time and I only want to raise it to be level with the stock rear suspension height. BDS makes a kit, but it is $5K and would raise my truck 4.5 inches which I don't want. Is there a way to simply add a 2.5 inch coilover in place of the stock shock? Any thoughts on how to proceed would be greatly appreciated.