I thought I would share a problem installing NWSL trucks on my E8. By the time I made bushings for ride height and the bearing for the truck, there was not enough stem length to install the one-way washer that they provide. I don't like the one way washer because you put it on once and to remove it you destroy the motor block stem. So, here is what I did and I am following up with pictures. I drilled two holes in the top of the motor block for the wires, made a slot in the frame floor of the loco for the wires and that allowed the hole in the stem to be used for a screw and washer. This installation also allows you to remove the truck without damaging the truck. Again, any questions, I will gladly answer them, Bob.