I spent a month shopping and researching which coil overs to purchase for my 2007 Silverado 1500 2wd. In the end I decided to go with these because they offered great performance at a price point well below any other option I could find.-Install was very easy. I had both sides installed in under 2 hours. I was also able to remove the spacer I had from the leveling kit because these coil overs are taller when adjusted.-Ride quality is absolutely amazing! Even with the spring preload cranked up to make the truck sit taller, these things blow the stock suspension away! It's like driving a cloud! No more bouncing around the cab at every bump or pothole, no more back and forth body roll. Just smooth comfortable driving.NOTE: if you intend to use these to level the front end of your truck, you will need upper control arms. I chose Motofab uppers because they were on sale but Icon sells some great ones too.