The plot thickens, finally got around to adding the washers received in 2000. Cars may have been run once since owned. Found out that two of the cars have updated trucks with a plastic strut added to prevent the roller from contacting the axle along with a plastic coupler arm which isolates the spring from the car chassis. (See pics.) Verified with an ohmmeter. So two cars don't require the washers and two do having a metal coupler arm.
Since I'm working on the cars, the hot wire to the bulbs will be interconnected to minimize blinking.
As a consequence, I have 4 unneeded washers, free to a new home. E-mail is in my profile.
For reference, the washers measure 0.380 od, 0.180 id, 0.009 thk.
