Yokomo D-139 Upper A arm Shock Tower for DriPack — Front upper A‑arm shock tower for DriPack drift setups  [D-139]

Upper A-arm shock tower for DriPack

This Yokomo D-139 is an upper A‑arm style shock tower intended for use with the DriPack drift package on 1/10-scale RC drift cars. The part is presented as an aluminum conversion component that replaces the standard mount to provide an A‑arm configuration at the front, and it corresponds to the SSG front shock tower arrangement referenced in the source note.

Role and tuning: the tower provides additional mounting geometry for the upper of the A‑arm, allowing adjustment of camber and roll characteristics through different mounting points. As a chassis conversion component it is used to change suspension kinematics and to fine‑tune front-end behavior during drifting practice and track setup.

Compatibility and constraints: the item is described for DriPack drift setups. It cannot be used in combination with the D-102 Imadoki Conversion; verify your chassis and hole patterns before fitting to ensure direct compatibility.

Installation notes: align the tower with existing mounting holes and check clearances for steering and shock travel before final tightening. Use the manufacturer-recommended fasteners and torque sequence for threaded connections to avoid distortion of the aluminum mount.