Just bought a 98 Suburban LS (214000 miles, 1500, 2WD) for $2000 here in NC. Just charged up AC, but noticed the door sags, so much that the light switch cutoff isn't properly depressed and interior lights stay on unless I kit the dome override switch. Is there a fix for this issue? when I lift up on the end of the door, there is obvious play. Looking for a detailed writeup on the procedure.