Tamiya 1/14 Centre Gearbox TRU018 Precision Aluminium Upgrade by GPM  [TRU018]

Precision machined centre gearbox for 1/14 Tamiya trucks

The TRU018 alloy centre gearbox is a precision-machined aluminium housing intended as an aftermarket replacement for 1/14 scale Tamiya tractor trucks. The design replaces the original plastic centre gearbox with a stiffer aluminium case and incorporates an external heat sink surface to assist thermal dissipation during extended operation. The assembly is supplied as a 2pcs set with matching mounting screws for direct installation.

Specified for RC drivetrain use, the housing increases torsional stiffness and improves long term durability where improved mechanical coupling between front and rear sections is required. The unit retains the stock drive orientation and mounting points on compatible Tamiya models, enabling a direct-fit aluminium upgrade without changing internal gear geometry.

Service notes: installation requires basic centre section disassembly and removal of the factory gearbox, then secure the alloy unit with the supplied screws. Adjust and confirm gear mesh and alignment after fitting and perform an initial low-load run-in to verify engagement. Only standard RC hex drivers are necessary and thread locking may be applied based on maintenance policy.

For technical builders seeking a higher stiffness centre section and enhanced heat transfer in a 1/14 Tamiya truck drivetrain, the TRU018 alloy gearbox is a direct-fit aluminium solution supplied as a 2pcs set with screws.