An outstanding value in replacement steering systems, the "Rack" comes with a back-mount design for simple installation. The "Rack" is recommended for single engine, power-assisted outboards up to 24' with up to 16" steering wheels. 4.0 turns lock-to-lock. Standard 3/4" tapered shaft. Heavy-duty, corrosion-resistant construction meets NMMA requirements and ABYC safety standards. Available in 9' - 18' lengths. 4 turns lock-to-lock Standard steering system For use with power-assisted O/B, Sterndrives, I/B | Seastar Solutions The Rack Back-Mount Rack-and-Pinion Steering System, SS141