Race-Driven Rack and Pinion Boot. You will receive (2) boots to replace the driver and passenger side boots on the following: 2015 2016 2017 2018 2019 2020 Polaris RZR S 900. Race-Driven rack and pinion boots are made to meet or exceed OEM and other aftermarket specifications and has high quality rubber for extended life. Replace those cracked or punctured boots before dirt and water ruin your steering rack. Race-Driven is committed to bringing the highest quality products to all riders at an affordable price. Customer Driven – Quality Driven – Race-Driven.