The TA05-06 king pin set is intended as a direct replacement for the front suspension pins that locate the knuckle to the bulkhead on Tamiya TA05 and TA05-R chassis. It is used to eliminate axial play at the steering pivot and to restore the designed pivot point used during setup work.
This is a model component only and is not suitable for full-size vehicle use. Routine replacement is common after collision damage or when repeated running produces steering slop. Restoring correct pivot geometry aids predictable steering inputs and repeatable suspension behaviour on the track.
Service notes: access the front bulkhead to remove the knuckles and old pins, inspect pin bores, bushings and bearings for wear, then install the TA05-06 pins. After assembly, verify free knuckle articulation and confirm alignment and toe settings before running.