The Walthers Proto 920-2010 HO Scale ASF Roller-Bearing Sprung Freight Car Trucks with 36" metal wheelsets are prototype-accurate replacement and upgrade trucks for HO scale rolling stock. The ASF Roller-Bearing Sprung design is correct for diesel era high-value freight cars including refrigerator cars and auto racks. WalthersProto has captured the distinctive sideframe configuration and structural details faithfully in 1:87 scale, making these an accurate and reliable choice for modellers building or upgrading freight cars of the period. Metal 36" wheelsets ensure reliable electrical pickup and smooth tracking. Drop-in compatible with most standard HO freight car truck mounts. Sold as a pair per package.

Key Features:
- ASF Roller-Bearing Sprung truck design in HO scale (1:87)
- 36" diameter metal wheelsets
- Prototype-accurate for diesel era high-value freight cars including refrigerator cars and auto racks
- Drop-in replacement for most standard HO freight car applications
- Metal wheelsets for reliable electrical pickup
- Sold as a pair per package
- Appropriate for diesel era layout scenes
- compatible with most standard HO freight car truck mounts
- Scaled for HO scale (1:87) layouts
- Based on real-world prototype equipment for maximum authenticity
- Accurately represents a specific historical era for period-correct layouts
- Fitted with metal wheels and/or Proto MAX metal knuckle couplers