This is a pair of optional Rear Shock Shafts for the

The center drive shaft carries power from the center of the drivetrain to the rear

setting menu

The motor is designed with high torque at low speed crawling and with a special firmware from the Lizard Pro ESC

Always confirm the battery-tray dimensions

Athearn ATH40076 HO Scale Power Truck / Low Brake Set SD38 / 40 / 45 5mm Pinion This is a pair ofAthearn ATH40076 HO Scale Power Truck Low Brake Set SD38 40 45 This genuine Athearn HO scale power truck and low brake set is designed to fit SD38, SD40, and SD45 locomotive models. It is a replacement part for maintaining or upgrading your Athearn locomotive's running gear. Scale: HO Type: Power truck low brake set Fits: SD38 SD40 SD45 Genuine Athearn replacement part