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305' thrall unit wheel size Locos and rolling stock
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Regular poster 212 posts johnybgood18 Regular poster 212 posts
johnybgood18

Hi guys,

I have the above from Walthers (the old kit version, not the newer metal version) and they come with plastic wheels.  I want to replace the wheels with metal ones but I checked the size and they are a bit smaller than 33" in diameter.  I believe the prototype uses 28" wheel.  Is this correct?

Thanks in advance,

Chris

You can visit my layout Facebook page: Freelanced Perkins subdivision
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Joe Atkinson IAISfan Super User 3,775 posts
Joe Atkinson IAISfan

33" and 38"

Assuming you're talking about the well cars (can't recall if Thrall made the prototype for Walthers spine cars), the prototype cars have 33" wheels on both ends of the set and 38" on the shared trucks between platforms.  Here's a link to a Trainorders thread that discusses the topic:

http://www.trainorders.com/discussion/read.php?3,1351826

Joe Atkinson
Modeling Iowa Interstate's 4th Sub, May 2005
https://m.facebook.com/groups/iowainterstate4thsub

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johnybgood18 Regular poster 212 posts
johnybgood18

Oh no! :-(

Well, this means that I'll have to modify the shared trucks to accept the 38" wheels!

Thanks a lot for the info Joe,

Chris

You can visit my layout Facebook page: Freelanced Perkins subdivision
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slow.track Regular poster 275 posts
slow.track

You could likely add 36"

You could likely add 36" wheels and no one would be the wiser.

-Travis

Prairie Scale Model Railroaders
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johnybgood18 Regular poster 212 posts
johnybgood18

Hmmmm...

...interesting!  I didn't think about that!  And since I already have 33" and 36" at home, it may be the way to go!   Since 1 1/2" is .017" in HO, it won't make a big difference visually.

Thanks,

Chris

You can visit my layout Facebook page: Freelanced Perkins subdivision
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Milt Spanton mspanton Super User 979 posts
Milt Spanton mspanton

Love the Aye-Aye!

Good choice.

- Milt
The Duluth MISSABE and Iron Range Railway in the 50's - 1:87
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