Here is an Atlas 190000 HO Roller Bearing Caboose Trucks (Pack of 2)

Here is a MTH 30-11006 O Gauge Modern Operating RR Crossing Signal

metal wheels and metal knuckle couplers

Model Number: 98838

MTH 30-1653-1 O NYO&W L-3 4-8-2 3-Rail Steam Loco w/ P-S 3.0 #406 - 3-Rail ProductID_12405983 Here is an Atlas 190000This is an MTH 30 1653 1 O New York Ontario & Western Class L 3 4 8 2 Mohawk 3 Rail w Proto Snd 3. 0 #406. Features includes diecast boiler and chassis. Diecast tender body, authentic paint scheme, diecast locomotive trucks, metal handrails and decorative bell. Decorative metal whistle, metal wheels and axles. Remote controlled Proto Coupler, prototypical rule 17 Lighting, constant voltage headlight, precision flywheel equipped motor, synchronized