First Drive Arm

This item includes two ball-joint rod ends and a 12″ length of threaded rod. The rod ends are 1/4-28 or 3/8-24 female threaded, with a 1/4″ or 3/8″ hole in the ball bearing. The 1/4″ version is ideal for use with the offset pin arm and linear slide as seen in Power Transmission 1, and the 3/8″ version works with the Invader/Stallion style components used in Power Transmission 2.