Ok so maybe a stupid question. I just installed a new set of rims and tires and am having a very large amount of rear wheel bounce. It is to the point that it is giving me tire pressure sensor failures. What if anything can I do with my suspension to correct this. I am currently running factory shocks. Do I need to upgrade to airbags or some other system? I know the long bed adds to the bounce in the roads but it is almost undrivable without a trailer hitched up. Any help would be greatly appreciated.