I like the idea of a HD spring from Deaver. Ideally, I'd purchase a whole 4" coil-over from JBA and a custom 4" spring from either kayak or Deaver, but its so $$$$. I think the best option for now is to replace the 2.5" coil spring w/, not sure which one is stiffer, either the JBA or OME HD and then get the Monroe sensa-track load absorbing shock. It's gotten to the point where any extra weight makes the bump stops touch the axle, and hitting a speedbump or pothole causes the rear to bottom out onto the bump stops. I'll see if the air bags will be necessary after a few trips this winter, but I imagine the addition of the load absorbing shocks will make a good difference w/ the stiffer springs.