Here's how I fix them....
Mechanisms for Red Caboose GP-9s. P&D brass trucks and Des Plaines brass frames. As usual, Faulhaber gear head motors with everything turning 1:1 in ball bearings and wipers mounted in Delrin.
Decoder is LokSound. They are new to me but from my limited knowledge they seem really good.
One down, two to go. Two are P48, one is regular O Scale.
Wheels spinning and maximum voltage (13.5 volts) draws .22 amps. My Pittman gear heads can't do it, plus they won't fit. The secret is very efficient gearhead motors
Looks like I need to touch up some paint.
You may see the first one a lot in the future.
Jay