Yeah , He can maybe get a needle/syringe type lube and push it between the sleeve and the poly material on the upper bushing. Or maybe someone will come up with eccentric bolts with grease fittings for you all to buy as a package with the lower pins and the "K-member bending none cushioned adjustable struts". I am sure as soon as PST sees this post there will be lubible upper bolts to sell.
I love this site, It never seizes to amaze me of how gullible some of you are to these venders . Entertaining as ever.