As far rear springs go, I am down to 2 leafs from 5 to try and soften the ride. It was so stiff that 2 grown men hardly made a dent. I tried running 5 lbs air and it was ruining my tires outside tread so watch that. I usually am by myself so it only made sense to make it softer. Buying the Jakes long travel (#6210) tomorrow and hopefully the stiff ride will be gone!! NSF