Had a noise under my 01 the other day. Crawled under and found on the passenger side where the trac arm mounts at the lower spring perch had rotted away. It is welded to the axle and I have not found any suppliers of them. Would adding a leveling kit have put more load on it. My jeep has a adjustable trac arm. Do they make one for our super dutys? Not having much luck finding replacement parts.