I tried the greasable ones a long time ago when my OEM brackets finally snapped from my Progress bar. They don't fit. The PU bushing and steel bracket are larger than expected and push the bolts too far apart to line up with the holes on the frame. I tried to force it to work a couple ways and no dice. Its just easier to get the non-greasable ones that actually fit. If they by chance ever do start making noise (still hasn't happened for me), its easy enough to just pop them off and do it with your finger one afternoon.