I tried pulling and working on the wheels and without too much effort have gotten them reasonably straight. What type of bulb is used in the headlamp on his trolley? Mine is burned out and I'd like to replace it. Any tips on replacing the bulb would be helpful.
Thanks

How can I straighten the wheels on an open trolley? One wheel set has one of the wheels out of alignment enough to cause the trolley wag back and forth.

JD,
I mis-wrote. I meant I'll stick w/larger size. Thanks again for the complete explanation of the two wheel sizes.
Larry

Jeff - Thanks alot. I'll stick with the smaller size. None of that info seems to be on the Bachmann site. BTW I'll bet you meant "bobber".

Thanks. Are the 31 mm used on all BH rolling stock? What are the small 24.5 mm wheels used on?

I notice there are two sizes of replacement wheels sold by Bachmann (Large 31.0 mm #92421 and small 24.5 Mm #92422). Which ones do I use for BH freight and/or passenger cars? I recently purchased a used Emmett Kelly Circus Train and it has plastic wheels that I want to replace.