I noticed that my propointer was getting a little worn toward the end of the unit, so I went to lowes looking for a solution. I found an underground UF splice kit that had a section of heat-shrink tubing large enough to go over the shaft of the propointer. Below are photos of the results. The heat shrink added about 1/16th of an inch of material to the housing, so it should hold out for quite some time.