@Bob posted:The PRR 2-10-4 has 69" diameter drivers vs. 64" for the B&LE locomotive. The 5" difference is about 1/8", which I think would really change the look of the B&LE. The huge boiler vs. relatively small drivers gives it a distinctive look.
Tire diameter will be very close. Three rail has undersize tires, wheel diameter is a function of the flange diameter. Wheel base may be a bit longer though.
Pete