Tamiya 84381 Racing-Grade Steel Rear Shaft & Diff Housing  [84381]

Precision Steel Rear Shaft from Tamiya 84381

The Tamiya 84381 Steel Rear Shaft and Differential Housing is a solid upgrade for drivers looking to refine their F104 or TRF101 chassis behaviour. It replaces factory components to promote cleaner rotation and lower drivetrain inefficiency.

Better Grip with Added Mass

Built in steel, this rear shaft and diff housing adds 9 grams over comparable carbon parts, helping the car find grip on low-traction layouts. The weight promotes steadier rear-end response for consistent lap times.

Compatibility and Recommended Pairings

This component is compatible with F104, F104 Ver.II, TRF101, and TRF101W chassis. For a complete setup consider using it together with the Tamiya 84380 Carbon Rear Shaft & Diff Housing Set. Note that Diff Housing A and other items from 84380 are necessary to finish the fitment.