Tamiya 84381 Weighted Steel Rear Shaft and Differential Housing  [84381]

Upgrade Your Rear End with Tamiya 84381 Steel Components

The Tamiya 84381 Steel Rear Shaft and Differential Housing is intended for enthusiasts aiming to improve the drivetrain feel of F104 or TRF101 chassis cars. It replaces standard kit parts to provide smoother rotation and reduced mechanical losses.

Stability from Increased Rear Weight

Forged from strong steel, this rear shaft and diff housing adds 9 grams compared to carbon alternatives, delivering extra traction on low-grip surfaces. The higher mass helps the car remain composed during acceleration and cornering.

Which Cars It Fits and Setup Hints

This steel shaft is compatible with F104, F104 Ver.II, TRF101, and TRF101W models. For best integration use alongside the Tamiya 84380 Carbon Rear Shaft & Diff Housing Set. Keep in mind that Diff Housing A and parts from item 84380 are needed to finish installation.