Traxxas
Traxxas Two speed transmission, complete (w/Titan 87T motor) TRA9891
Traxxas Two speed transmission, complete (w/Titan 87T motor) TRA9891
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Traxxas® TRX-4M™ Two-Speed Transmission
Elevate your TRX-4M™ crawler’s performance with the Traxxas Two-Speed Transmission. This drop-in system delivers selectable high and low gear ratios, letting you conquer technical rock-crawling sections or maintain speed on open terrain. Out of the box, it comes preassembled with a Titan® 180 motor and includes a mounting bracket for a hassle-free upgrade. The integrated manual shifting lever lets you switch between low (32.7:1) and high (9.9:1) gears on the fly, giving you ultimate control over torque and speed. Designed to mesh perfectly with stock portal axles and optional speed gearing, this transmission adds versatility without sacrificing reliability.
Key Features
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Fully assembled with Titan® 180 motor for quick installation
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Manual shifting lever for on-demand gear changes
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Low gear ratio (32.7:1) boosts rock-crawling torque
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High gear ratio (9.9:1) maintains standard driving performance
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Includes mounting bracket and hardware for seamless integration
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Works with stock gears and optional TRA9776X speed gear set
Compatibility Note
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Compatible with the standard gear set and optional TRA9776X speed gearing
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Not compatible with the TRA9776R crawl gears
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Integrates with the vehicle’s portal axles and existing drivetrain
What’s Included
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Two-Speed Transmission
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Transmission Mount
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(2) 2×6 mm Button Head Screws
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22T Adapter for optional TRA9776X gearing
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Titan® 180 Motor
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Product Manual
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