American Flyer Locomotive 3745 GP-7 Twin Unit Diesel Parts List & Diagram
This is the service bulletin furnished by the A. C. Gilbert Co. to authorized service stations to aid them in the service and repair of American Flyer Locomotive 374 375 GP-7 Twin Unit Diesel Service Manual.
This is also referred to as the American Flyer Locomotive 3745 unit as it represents the combination of two engines. One is the 374 and the other 375 locomotive. Each is identical other than one is powered and one isn’t and they were designed to look like a tandem train engine pair.