[CarWin]

If you look at post 12 in this thread, notice the black piece with 3 bolt holes...The wiper ring you speak of is on the bottom....the O-Ring I replaced is above the 3 holes on the part that inserts into the aluminum cylinder housing. As of this evening still no leak...left in down(leveled) position for 1 day and now in retracted position. Will check for leak tomorrow evening, while under retracted pressure.