I bought all new,,,everything, springs, brake hubs, wheel cylinders, shoes, star adjusters, adjuster cables and springs so my plan is to remove everything, inspect the back plate and smooth-out if necessary, lubricate the back plates with moly grease, replace all components and bleed the system. Just not sure what the PO did, just got the jeep in July so, might as well start out fresh. If I missed anything, let me know.