Made from CNC Machined high-quality steel and heat-treated for increased durability, these ST Racing hinge pins are polished and ultra smooth! Using Nylon lock-nuts (sold separately) to secure the hinge pin in place helps prevent the pin from ever coming loose or backing out.This is a great upgrade for your Traxxas Slash, Stampede, Rustler or Bandit.
These hinges pins will fit the Slash 4x4 perfectly on the rear A-arms.
However, in the front, they are slightly too short.
They would fit if you remove some material from the A-arm.
Some pictures: https://traxxas.com/forums/showthread.php?9020576-Slash-4x4-hinge-pin-upgrade&p=5850320#post5850320