Excellent set. Good quality feathers. I installed them on a 2000 Lincoln Navigator which is a pretty heavy car and they support it very well. You will also need to buy or rent a coil spring compression tool to set the springs. The only problem with the set, however, is the instructions. They tell you to install the springs upside down. Without an error in the instructions I would have given it 5 stars, but due to an error in the instructions I'm giving it 4 stars.