My pathy seemed like it needed new shocks because it bounced like a beer can going down the road. You go over a dip in the road and the thing would almost come off the ground and jump up in the air. Recently I put new monroe matic shocks all around and guess what - it rides the same! yukk! A while back I put 10 bags of 40 pound potting soil in the back and it rode pretty nice but I can't keep 400 pounds in the back all the time because I carry groceries and other stuff occasionally. How to I tame this bucking bronco?