My 2011 HDX started making a nasty clunking noise upon acceleration/deceleration, got a second set of eyes on it while running it and the front lower mounting tabs that hold the rear-end in are broke off. They are really lightweight looking and without them obviously there is enough torque to twist the rear-end. Is this a common thing that anyone else has experienced? I realize mine was possibly delivered via- chute-less parachute drop, at least it looked like it when I bought it. If not, it seems like a weaker spot that should be checked now and then to see if it is cracking.