Tamiya 54921 REINFORCED SWING SHAFT CAPS (FRONT/REAR, 2PCS. each)

M-07 CONCEPT Chassis / M-08 CONCEPT Chassis: When 54306 and 54532 are used (only Y4 can be used).
TA07 PRO Chassis: Use with 54689 or 51565 (Y4 only).
TA06 Chassis / TA06 PRO Chassis / TA06 MS Chassis: When 54544, 54532, 54306, 54305 are used (Y4 only).
FF-04 EVO Chassis / FF-03 Chassis / FF-03 PRO Chassis: When 54532 is used (Y4 only).
TB-04 Chassis / TB-04 PRO Chassis / TB-05 PRO Chassis / TC-01 Chassis: When 54543, 54522 are used (Y4 only).
TB Evo.6 Chassis / TB Evo.6 MS Chassis / TB Evo.7 Chassis: Only Y4 can be used.
TA07 MS Chassis / TRF419 Chassis / TRF419X Chassis / TRF419XR Chassis: Use with 54879.