Will try the truck alone to see .
The wheels I bought are 36" x 0.540" by ESM # 920200
I am waiting for the FVM , will see
They were not rolling bad but I wanted metal wheels for maybe future lights and also to add weight to the bottom of the car , all these cars have body mounted couplers .
I checked the gauge they are ok .
I have to inspect if they rub to the underside of the car but they are supposed to be the same size .
Received and installed the FVM ( Scale Trains ) ones , no problem at all , the shaft loooks a little bit shorter , they roll better , no derailment anywhere .
The ones I have are FVM 3610 with 0.540" axle
Very happy with them