i looked at the same suspension pin box's a while back and have two friends with them. 1 is the moryde and the other bought the tri glide which is the best choice/design imo if your going that way. i decided i wanted an air ride hitch rather than a pin box so no matter what camper i have or pull it stays with the truck and don't have to worry about buying another or trading up to one with the same frame so it will swap over. i went with this one http://www.mountainmaster.net/airhitchcom.html and have been very happy with it but i like this one too and would like to compare it to mine http://www.airsafehitches.com/20k.html