Check the listing for details. Traxxas 9891 Complete Transmission Two Speed. Condition: New. Listed at 49.95 USD. New in package Traxxas 9891 Complete Transmission Two Speed A New Level of Crawling CapabilityAdd enhanced crawling capability to your TRX-4M with the new High/Low 2-speed transmission. The manually selectable unit adds a low gear option for incredible rock-crawling torque, while keeping the standard high gear ratio for general driving. The transmission comes fully assembled and ready to install with a new Titan 180 motor and mounting bracket. Note: The High/Low 2-Speed Transmission is compatible with standard gears and the optional 9776X speed gear set. Not compatible with 9776R crawl gears. FeaturesFully assembled with Titan 180 motorManual shifting lever to select low (32.7:1) or high (9.9:1) gearsIncludes mounting bracketCompatible with stock and speed gear ratios, including portal axlesNot compatible with crawl gears Includes(1) Pre-Built 2 Speed Transmission With Motor Attached Vehicle models vary. We DO NOT guarantee this will fit the vehicle specified in this listing!Verify that this item is appropriate for your vehicle. Consult your manual or vehicle manufacturer.Verify vehicle fit-ment before purchase.Returns will only be accepted on items that are returned in new, factory-sealed packaging. Used, damaged (unless damaged when it arrived to you), and opened items will not receive a full refund. Any and all warranty claims will be handled through the manufacturer directly.