The Traxxas Maxx Hardened Steel Suspension Pin Set is an optional upgrade that will improve the durability of the Traxxas Maxx Monster Truck. These hardened steel hinge pins are much stronger than stock parts, and are better suited to hard bashing.
 
Includes:
Hardened steel suspension pins 
(4) (4x64mm)
(4) (4x22mm)
(4) (4x38mm)
(4) (4x33mm)
(4) (4x47mm)
(4) (3x8mm BCS)
(4) (3x6mm BCS)
(8) Retainers