The standard leaf springs of my 2014 4/4 2 seater were much too soft. I have 4 seater leaf springs from Peter Mulberry (when he still had his business) and I am very happy with them. Today Mulfab is no longer owned by Peter.I asked the new Mulfab company for hard chromed kingpins, but Wolf performance was much faster in communication and cheaper. Maybe Cain at Wolf performance has such 4 seater springs as well, just mentioned for a price comparison.