Athearn Impack Cars wheel issues

I have a few strings of Athearn's old impack cars, but they all roll pretty bad... I took out a few wheel sets, and I've never seen such small wheels in HO before:eek:. Where can I get metal replacements for such small wheels and what diameter are they any way? 30? 28?
 

jbaakko

Active Member
28" and yes, North West Short Line (NWSL) makes metal ones that can be used as replacements.
 
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