Since I replaced all mine about 100 miles ago I don't have any issues I grease every other ride but that's it. I have never experienced the locking up of the travel that you describe? Strange. I ordered mine off Amazon they where for the RZR I bought all of the long ones and cut them down with a pipe cutter and put brass washers on the sides that I picked up from rule king a local farm supply store. Cause the RZR ones have a narrow outer lip then the cfm ones. Have had good luck with them so far. I ride in alot of clay mud, creek bottoms, and hard packed trails. I know the creek and clay can't be good on them but there holding up just fine.