I did the same thing. Actually I did it after I tried to install the lifter I bought from Big Foot. Unfortunately, my install didn't go as planned. While giving one of the bolts a tiny bit of persuasion The arm and one of the white washers went into pieces. I took a piece of 1/4 MDF, traced the shape of the arm and then cut it. Works great. Too bad it cost me $40 to use something I made myself - out of a scrap piece of wood no less.