TAMIYA Tractor Truck Aluminum Center Gear Box by GPM TRU038  [TRU038]

Center gear box for tractor trucks

This aluminum center gear box is an RC-scale replacement part machined by CNC to provide a more rigid enclosure for double shaft tractor trucks. The design focuses on protecting internal gears and improving thermal transfer from the gearbox to the surrounding air without implying any full-scale vehicle use.

The casing is produced in Aluminium 6061 T6 with a multi-axis CNC process described in the source, intended to resist wear and assist heat fanning around the gearset. The part is described as a 3D complex CNC option that increases mechanical protection for the gear train.

Fitment is intended for double-shaft truck drivetrains where a central gearbox houses drive gears; it is presented as a component to aid drivetrain durability and thermal performance rather than a performance upgrade with unspecified results.

The kit as provided in the source includes mounting hardware to secure the casing and is listed below in the main description, use the supplied screws when replacing the standard plastic housing to retain original mounting points.

Included hardware from the source:

• 3x14 Stainless Steel Button Head Screw - 8 pcs
• 3x20 Stainless Steel Button Head Screw - 4 pcs

As described, this GPM aluminum center gear box is an RC-scale protective replacement for compatible TAMIYA tractor truck models, intended to secure the gearset and assist heat dissipation when installed in double-shaft drivetrains.