Kadee 785 G Scale Truck Mount Conversion Couplers for USA GP7 GP9 (1 Pair) Wheels/Tires - USGT They can access the rear

They can access the rear of the vehicle via the ladder to inspect the tank from the top or sit in the cab and drive to their next job

Roundhouse 1022 HO Scale 34' Ribbed Hopper Baltimore & Ohio B&O 118900

featuring 13 different cars factory-finished in yellow and gray

MTH RailKing 30-7951 O Gauge SIde Dump Ballast Car Pennsylvania PRR 489942

Comes with decals for entire Baltimore Class of Heavy Cruisers

Kadee 785 G Scale Truck Mount Conversion Couplers for USA GP7 GP9 (1 Pair) Wheels/Tires - USGT They can access the rearKadee 785 G Scale Truck Mount Conversion Couplers for USA GP7 GP9 1 Pair G Scale Coupler Conversion Large Offset Couplers with Truck Mount Type Gearboxes, Coupler for U. S. A. Trains EMD GP7 & GP9