milnyc posted:The stacks are available at Port Lines. https://portlines.com/~worldof...page=index2-new.html
Items 1751 & 1752. Click on American Flyer parts and use the drop down menu to select Parts M-R and then select Prewar.
I found them finally, difficult to use website in my opinion. And excessive shipping for
one small part. But thanks for the lead.