I went back to 207th Street with my friend, and this time I was actually able to witness them taking 3240 off of its trailer. I also was able to get some cool photos of the underbody and components on 3239. Enjoy!
3239 following 3240 down 215th Street
Build plate on the truck – 3241 had its truck assembled later!
View of wheel assembly. Note the trip arm on the left
More shots of the trip arm
Factory fresh body
View of the trip arm on the other truck, on the other side of the car
View under the carbody. It looks like this pipe went into the brake valve relay
Main switch box?
Self-explanatory: battery breaker box (battery is off to the right)
This had the caution symbols for heat and high voltage, I believe. My guess is some sort of heatsink for electrical components
Sorry for the blur, but this is the valve relays
Close-up of the air ride suspension and where the third rail contact shoe will be attached (the bright red assembly)
Looking at what's above the truck - that black arm-like truss seems like it's part of the suspension
Close-up of the wheel. Notice the wheel is shaped inwards.
Tried to get a better view of the flange
The best shot I got – the motor and axle in full view
Wheel, bearing, and truck assembly
Another angle of the truck and suspension