So, I purchased a front sway bar suspension kit for my E-body from Just Suspension that included new end links and sway bar bushing and also a small packet of what I assume is bushing grease. I used this grease in the inner and outer of the sway bar bushings before installing them. My questions are, are these the new poly bushings everyone is raving about and do they need regular greasing? I used the original sway bar bushing hardware/u-clamp that does not have a zerk grease fitting for greasing these bushings, is this an issue?