Photo Caption - FVM Wheelsets (rear axle) in InterMountain truck with IRC metal wheelsets.

Notes:

First Two Digits = Wheel Size
Last Two Digits = Axle Length

Wheel Sets that end in Stock Number "01" = .540 axle - Fits Micro Trains Trucks

Wheel Sets that end in Stock Number "02" = .553 - Fits Intermountain Trucks

Wheel Sets that end in Stock Number "03" = .563 - Fits Intermountain Trucks