Pinion Gear from Robinson Racing

Required : Shock oil

Includes 20g pin drive adapter

One Knurled Nut w/Serrated Washer

Rear center driveshaft

Circuitron 800-5401 AR-2 Auto Reverse Circuit with Adjustable Delay Stadium Truck Pinion Gear from Robinson RacingCircuitron 800 5401 AR 2 Auto Reverse Circuit with Adjustable Delay The Circuitron 800 5401 AR 2 is an Auto Reverse Circuit built with an adjustable delay feature. It's designed to help automate reversing operations on your model railroad layout. Identified by Circuitron's item number 800 5401, the AR 2 gives you control over the timing of the auto reverse function through its adjustable delay setting. This makes it easier to fine tune reversing