Thanks for the information. I believe as well that the prices I get quoted over the phone are higher than if I paid an hourly rate to have a pre purchased product installed. There just seems to be about $300 difference in the finished install. My truck is basically a grandpa's big car and I won't be putting much stress on the vehicle. Saying this, I don't want to do anything that will compromise the safety or ride. I am hoping to find a better understanding of what changes, other than height, might be caused by such a level.