Traxxas 8255A Extended Portal Drive Stub Axle (2) are a pair of genuine Traxxas extended‑thread stub axles designed for portal‑drive trucks in the TRX‑4 and TRX‑6 lineup, providing longer wheel threads to accommodate wheels with center caps and other accessories; they’re direct replacements or accessory parts for models like the TRX‑4 1979 Chevrolet Blazer, TRX‑4 Ford Bronco, TRX‑4 F‑150 High Trail Edition, TRX‑4 Chevrolet K10 High Trail Edition, and TRX‑6 Mercedes‑Benz G 63 AMG 6×6, and can also be used on other TRX‑4 variants when fitting wheels that require extended axle threads.