If you are talking grease, Valvoline Full Synthetic is good because it contains the molybdenum disulfide that Ford specifies for their front suspensions in a lithium base. It works great for farm machinery too!
Valvoline™ Full Synthetic Moly-Fortified Grease is Valvoline's best automotive grease. Formulated with full synthetic base oil, moly and other premium additives to provide the ultimate performance from high loads and extreme temperatures (-40°F to 400°F).
That is a good question that I can't answer. I don't know. Have owned the car for 2 years. Everything looks fairly old. My. Mechanic told me everything seems good and tight. I am guessing rubber.