I have a set of HD Trucksprings heavy duty coil springs. I had them on my 07 V10 4x4 with Aluminess front bumper and winch, it brought the front up about 1" or slightly more. They saw about 5k miles of easy driving. I wound up using a different spring and now these are collecting dust. Here is a link to the product and such, retail is 189.00+shipping. I would like to get 95.00+shipping out of them.