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Thanks JD.  Usually I'm careful about checking on products before I use them but I was in a rush - oh well.I may have enough of the post left to hold a screw in which case I'm going to machine something that would look like a T-nut - giving me a post and the "washer" needed to get the wheel clearance for Bachmann trucks.  If not, I'll go with what you suggest although a bushing will be a strange size.  I'm measuring about .270 for the Bachmann truck hole and around .265 for the post - neither which convert to either common inches or metric sizes - my measurements must be off. Interestingly, I recently had a similar problem with one of my made in China RC planes.  A rod that slips into a sleeve didn't measure a standard size of either inches or metric.  It's like they set their machining up for what works even though it isn't a standard measurement.  Strange.  I don't doubt my calipers because they're on the money for known things I measure.  The good news is I have access to a lathe.Bob
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