Apply a thin coat of grease to the inside of the special tool. Install the cylinder end seal (A) onto the steering rack (B) with its grooved side (C) toward the piston (D). Make sure the gap is special tool is opposite of rack teeth. Separate the cylinder end seal from the special tool, then remove the special tool.

Install the new backup ring (A) on the steering rack, then place the backup ring and cylinder end seal (B) against the piston (C). Mark (A) a position on the steering rack surface with a felt-tip marker, 14.5 mm (0.57 in.) from the rack end edges.