This is a pair of steel gear box joints supplied for RC-scale Tamiya 4WD models, offered as 2 pcs per set. Designed as a direct-fit replacement for common gearbox link points on Hotshot, Hotshot II, Super Hotshot, Bigwig and Boomerang 4WD chassis, the parts focus on improving drivetrain durability where stock items may wear.
Use in maintenance or light upgrade work: swap these joints when you inspect the gearbox and notice play or wear in plastic couplers, or when preparing a model for more consistent trail or off-road sessions. The steel construction emphasises longevity in the gearbox area while keeping the original mounting interfaces intact to preserve geometry and handling.
Installation overview: remove the gearbox cover and the worn coupler, fit the steel joint into the original seating, verify mesh and clearance, then reassemble the gearbox. After installation, check drivetrain rotation and make small adjustments to gear mesh if needed. These joints are intended for model-level repairs and tuning; they do not change suspension or motor mounting geometry.
Tamiya 9808129
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