Firestone airbags is what I used, They are called ride rite. Mine are set up so I have a guage and switch in my cab and a motor under my hood so I can fill them on the fly. here are two pics of them. We installed at the house in a few hours. If the truck is lifted you will need spacers for them. I think you can talk to PRG Greg and get them from him, I think. Also the other pick is because I hate Barry