apex
I have a '06 Apex and the things that I have found and have read about are the front suspension arm in the skid can develop cracks, the rails can crack in the center area, one of the oil tank mounting tabs can break off from vibration, dounut gaskets, intermediate pipe can develop a crack, If there is no skid plate on the sled and the sled hit something, the bulkhead at the front of the tunnel can get hooked and can bend, ( not such a big deal) but the cooler is welded to this area..quick look and you will see if it has been bent....idler wheels and hyfax....