Metal Servo Mount Mid-wave Box Diff Lock Upgrade for Traxxas TRX-4 RC Car Model | eBay
TRAXXAS TRX4 TRAIL CRAWLER Aluminum Servo Horn W. Built-in Spring (For Locking Differential ) - 12pc set - GPM TRX4025T/S/3
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How to Set the T-Lock Servos | Traxxas TRX-4 - YouTube
TRX-4 Sport Differential Installation | Traxxas
Amazon.com: GPM For Traxxas TRX-4 Trail Defender Crawler/TRX-6 Merc-Benz G63 Upgrade Parts Aluminum Front and Rear Gear Box 2-Speed Diff Lock Servo Mount - 1Pc Set Red : Toys & Games