Skyjacker 4" since 1995 here and still happy with them. Used to have Rugged Trail Nitro Cell shocks which I thought were the best back in the day. Unfortunately they are no longer around. They used to have the best warranty.....you break it we replace it FREE. A friend of mine ran a log right through the shock rod and broke it right in half. Sent it in to Rugged Trail and they replaced it with no questions. Wish they were still around.