EFE Tube trains

I've done it with Tenshodo 24.5mm WB SPUD bogies - two are needed for a four-car train, preferably electrically connected to give smooth running over points, and with as much weight added as possible to improve traction. I also replaced the non-powered wheels with Romfords.

I use the short plastic couplings, but the car ends touch on 2nd radius curves. I managed to break off one of the small plastic bogie hooks, but that bogie is now on an end car. It's not a very practical system, but I don't know what they can be replaced with in such a small space, unless you fabricate something out of sheet metal or wire.

BTW to disassemble a car, carefully prise off the underframe moulding, which is glued on, to give access to the screws holding the floor unit.