This replacement differential housing is an aftermarket component built for ARRMA 1/7 and 1/8 scale desert trucks and related platforms. The assembly uses a medium carbon steel outer section to improve wear resistance where gears and bearings make contact, while the centre section is machined from 7075 aluminium to reduce rotating mass without sacrificing mounting rigidity. A rubber sealing ring is included to control contamination and retain lubricant inside the gearbox.
For hobbyists focused on long runs or heavy bashing, the unit serves as a chassis-level reinforcement: it stabilizes the differential gears, keeps gear mesh consistent under load, and helps prevent premature wear on internal gears. The design is intended for direct replacement of the factory differential housing in compatible ARRMA models; confirm fitment against chassis and axle layouts before installation.
Installation notes: remove the axle or centre gearbox per your vehicle manual, transfer internal diff components into the new housing, use the supplied sealing ring, and torque fasteners to match original hardware recommendations. Check gear backlash and lubrication after assembly, and re-inspect after the first run.
ARA310983
This differential case is a direct-fit aftermarket replacement aimed at ARRMA desert truck owners needing improved durability and sealing. Use it to replace worn housings, maintain consistent gear mesh under heavy use, and reduce maintenance intervals associated with gear wear and contamination.
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