42391 TRF421X Damper Stay Mount - 3451584 for Tamiya  [3451584]

Replacement damper stay for TRF421X

This is an RC-scale damper stay sold as part number 3451584 from Tamiya, designated for the 42391 TRF421X chassis. The component acts as the mounting point for the shock absorbers and is intended to replace the original stay on compatible TRF421X builds.

Operationally the stay defines shock installation points and relative angle, giving a simple way to adjust leverage and shock geometry without replacing arms or shock towers. During setup it is useful for trying different shock angles and mounting heights to affect transient response and roll behaviour on 1/10 scale touring car platforms.

Installation follows the usual TRF421X process: remove the original stay, transfer any spacers or bushings you need to keep, and install the replacement using the existing chassis screw locations. No chassis alterations are required when using the intended TRF421X parts, but check alignment and screw engagement as you reassemble.

Fit this stay when you want a straightforward, reversible method to change shock geometry on TRF421X cars, focusing adjustments at the component level rather than with major part swaps.