Really nice if you are using your truck for a truck. Took about 3-1/2 hours with a trip to the hardware store. My 12 Frontier gets very busy around the driver's side frame so I needed a bit of patience. The walk-through party then lasted 30 minutes. Much better handling than just blunt sag springs and took away 98% of the bounce even with Bilstiens. The combination is now a huge relief for me personally. I found that it was impossible to use existing locknuts with a certain spacing and after breaking a couple of carriage bolts in half I bought nylocks. I chose dual carriers because while using T is easier, it defeats the purpose. hydrodynamics, look.