This aluminium upper plate is an RC-scale replacement for the Tamiya TB-04 platform, intended to stiffen the rear gearbox mount and help limit chassis flex under load. It prioritises structural support and drivetrain alignment rather than visual modification.
The item is compatible with TB-04 chassis variants as shown by the product name. It is meant to interface with the existing TB-04 gearbox and mounting hardware and is useful when tuning to improve gear stability and drivetrain response during demanding runs.
When installing follow usual RC workshop checks: verify hole alignment, ensure correct screw thread engagement, and inspect gear engagement after fitting. These instructions are for RC models only.
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