I need to replace rear upper control arms as camber is off with symptom of inside tire wear. Got a quote today that was nuts so going do myself. Looking at two Moog RK series arms. One has grease fitting RK100106 and other one doesn’t RK621873 and it runs about $10 buck per arm higher. Any thoughts on which one is better? I have no problems maintaining them occasional with grease gun. Any other brands recommended other Moog?