The Tamiya 40101 GB-01 B Parts gear case is a genuine replacement made to match the GB-01 chassis layout. It is ideal for swaps after impact or wear and helps restore reliable drivetrain function.
The gear case keeps gears and related parts clear of dirt and debris, preserving smooth mesh and reducing wear. It is suited to hobbyists who push their models on rough surfaces and want dependable internal protection.
Engineered for the GB-01, the case installs using the chassis mounting points with no major shaping required. When fitting, check gear alignment and torque fasteners to recommended settings.
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