im being lazy and dont wanna put the car on the lift..about 2 months ago i stuff me..6'3 240, my buddy matt 5'6 270, an empty 02gt axle, 4 pony wheels/tires in my car..went to take off and heard a rotational scraping noise coming from underneath..whatever it is hitting is thin or some kinda hollow almost sounds like exhaust..
now it does it over dips in roads, it does it over speed bumps, any time the suspension drops a good amount..i used to be able to run around with 4 people in the car no problem wouldnt bottom out or scrape no nothing..now i cant put anyone big in the car (works well to avoid taking a fat chick home while being a wing man

) lol or put any kinda weight in the back...even worse my car SQUATS bad and is nose up real hard under acceleration..and certain launches i get it to scrape...
any ideas guys?