i am looking into putting air bags on the rear of my truck.. does anyone have these on their truck? or know anything about a better brand or model? ive driven for about 6 months and a coupld of times ive had it loaded down so much my bumber and rear hitch is almost rubbing the ground... my stock tires have bubbled out of the sides because of too much of a load but i just bought some 285/70's so i shouldnt have that problem... i just want to be able to sit my truck back up high when i have a heavey load on..