MR-03 AWD Rear Knuckle Arm Holder CNC Alloy (Toe Out -0.3mm) MZA031R/-0.3 by GPM  [MZA031R/-0.3]

Technical overview of rear knuckle holder

Manufactured from a stable alloy, this rear knuckle arm holder is engineered for Kyosho Mini-Z AWD arrangements and tailored to MR-03 AWD style mount points. The part fixes a rear toe-out of -0.3mm and ships as 1 pcs for targeted tuning or replacement applications.

Functionally the holder provides a precise mounting datum for the rear knuckle arm to ensure repeatable toe geometry. Alloy material selection minimises deformation at the interface and maintains consistent alignment while the rest of the suspension is left unchanged, aiding controlled tuning iterations.

Fitment is a direct replacement for the stock rear knuckle arm holder on compatible Mini-Z AWD vehicles; install using the existing hardware while verifying seating and clearance on MR-03 AWD variants before dynamic testing. Use this component when conducting methodical toe adjustments to quantify their effect on corner entry dynamics and mid-corner stability.