Home built splitter with a 6" I beam. Flat pusher, static wedge. Currently using 4 bolts tightened up with flat stock on them, the bolts constantly loosen up and the I beam and cylinders are talking a pounding from flex and abrasion/binding. Besides installing beam washers to be able to tighten it up, are there any standard bearing or greasing systems that are used for this method? Installed grease zerks or other while I have it apart?