A ripper assembly includes a ripper frame, which has at least one slot disposed in each of two opposing sidewalls. The ripper frame accommodates a ripper shank in a channel within the ripper frame. A pin is provided to pass through the at least one slot and through a through-way in the ripper shank to constrain the ripper shank within the ripper frame. At least one pressure source supplies pressure to the ripper shank to engage the ripper shank in a position.