For a few years I think 2001-2005 the made the horseshoe brake that is held together by one screw and retainer clip. They have come out with a fix that means the removal of the rear end. Here is a copy of the rockauto part that means you have to take the splines out. ACDELCO 89026798 GM Original Equipment Info Fits 7,200 lb Vacuum Brakes; 8.625 R/GR; 2nd Design; TWO CLIP POINTS FOR PARK BRAKE SHOE FOR 1ST DESIGN SEE 89026786 Or 4WD; 7,200 lb Hydraulic Brakes; 8.625 R/GR; 2nd Design; TWO CLIP POINTS FOR PARK BRAKE SHOE. I was just thinking how much this would cost at GM to get done, because this is way beyond my skill level.