I live in Alaska and I'm moving in a few months, I will be driving our Xterra S down the ALCAN Highway which is very hilly and bumpy. The problem is my rear susp seems to bottom out with a relativley light load! I will have a roof top storage box (aprox 150lbs) the rear cargo will be loaded (150-300lbs) and the trailer hitch cargo carrier loaded (maybe another 100-200lbs) then add me, my wife and two kids and the usual road trip stuff, we're looking at some weight here. I had my daughter and 5 of her friends in the truck and it was bottoming out over mild bumps (the girls are all 80-90 pounders) So can someone suggest a fix for this? I dont want it to have a severe rake when unloaded but a slight rake wont bother me. Thanks