I have the Carli full rear spring pack,it is designed for a better overall ride and a huge improvement on the expansion cracks. Along with the 3" king shocks this truck will take some wiked abuse,I hooked up the 25ft tt last wk-end I tightened up the spring bars one link to keep the combo level. Thanks Sage you did an awsome pkg for me. Now I have to upgrade the tires to keep up :-laf
Bob
Bob