Atomik RC Traxxas Slash 2WD 1:10 Aluminum Alloy Front Steering Block Hop Up Upgrade, Blue Replaces Traxxas Part 3736 Precision CNC Machined for Factory Spec Fitment. Hardened Billet 6061 Aluminum for Lightweight and Durable Performance. Easy Upgrade from the Original Part. Replaces Traxxas Part 3736. Atomik RC Offers a Full Line of Hop Ups for your Traxxas Slash 2WD 1:10 Available in Red, Blue, Grey/Gunmetal.