TRX4 Gets Vitavon 7075 axle housings with brass!!
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VITAVON Axle Housings and Shock Mounts SCX6!!
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TRX 4 Comp Build Pt 1 Axles
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SHOULD YOU WEIGHT YOUR TRX-4?? | Yeah Racing Metal Axle & Brass Upgrade Sets
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Going Heavyweight! - Traxxas TRX4 Defender Brass Upgrades - Can it Climb Now?
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Don't Add weight to crawler - Steel Axles Housings For Traxxas TRX-4
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I Bought a Traxxas TRX4 Sport! Let’s See How it Crawls Stock
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Yeah Racing Brass Upgrade Set for Traxxas TRX-4 - Installation and Advantages
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