Tamiya TB04 Graphite Propeller Shaft by GPM GTB4025  [GTB4025]

Tamiya TB04 graphite prop shaft overview

This is an aftermarket graphite propeller shaft produced for the Tamiya TB04 platform by GPM, supplied as 1 pcs. The component is described as a graphite shaft intended for use in the TB-04 drivetrain where a direct replacement shaft is required.

The article focuses on practical aspects for model use: compatibility with the TB04 designation as stated, typical installation context within the rear driveline, and the tuning role the graphite shaft plays. Graphite is noted for higher stiffness compared with many basic plastics, which can affect drivetrain rigidity and the feel of power transfer when used in model racing setups.

Installation notes: verify fitment against the TB-04 mounting points and existing couplers, confirm runout and alignment before final tightening, and inspect mating surfaces for wear. For setup tuning, consider drivetrain alignment, bearing condition, and any changes to central diff preload or spur/pinion mesh that may interact with shaft stiffness.