I've been reading the threads but want to make sure on the shock for my Dec. 99 F150 4x4 139" WB. Look at my info below if it helps. I really like my ride but I'm wondering if I could be in the market for a even better pair of shocks. I only go light off road when fishing or hunting but not as a hobby. I'm Mostly hwy driving. After 2 yrs. do we need to think about new shocks?? I do tow a 21' travel trailer and the ride is nice. Maybe I can still keep 'em. But if I were to get a pair, what model # and brand would give me a strong but nice noticeable cushion?