MJX Complete Metal Rear Differential 16420G2 – Upgrade Part for MJX 14210Replace your stock plastic rear differential with the MJX 16420G2 complete metal rear diff – a direct-fit, pre-assembled upgrade engineered specifically for the MJX 14210. Full metal gear construction delivers smoother power transfer, improved traction, and significantly greater resistance to wear under high-speed racing and demanding off-road conditions.Why Upgrade to the Metal Rear Differential? Full metal gear construction for superior strength over stock plastic Smoother operation and improved drivetrain efficiency Better traction and power transfer to the rear wheels Increased resistance to stripping and wear under high-load conditions Pre-assembled for a quick, hassle-free installation Direct replacement – no modifications required What's in the Box1x Complete metal rear differential 16420G2 (pre-assembled)Compatibility MJX 14210 Refer to your vehicle’s manual to confirm fitment for other MJX models Part Details Part Number: 16420G2 SKU: MJXS-16420G2 Brand: MJX Weight: 0.25kg Condition: New