CU-0401 CUSHION UNDERFRAME RETURN SPRING
Upgrade any cushioned underframe car with a cushioning unit which didn't have an integrated return to center system. Improve a kit or ready to run car with accuracy.
Some examples are cars that carry the following cushioning units
- Dresser Hydra-Cushion HC20-14
- Keystone Shock Control DA-20
- A.O. Smith (Apex) Cushion Ride 20-inch
- Rockwell Cargo Cushion 20-inch
- ATSF Super Shock Control 20-inch