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Discussion Starter · #1 ·
I've just finished the 4 axle motor block I'm going to use for the 4-8-4
Northern I'm building, utilizing the USA BB wheels I bought a few weeks
ago... I'm now casting about for some side-rods for it, an I was wondering
what the driver wheel-to-wheel spacing is on a USA BB.... Could one of U
lucky BB owners supply me with that info please ???
Tnx, Paul R...
 

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Paul
you mean Bigboy? When I get home I'll try to take a photo with the tape measure in front.

copy and blow up.
 

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Discussion Starter · #4 ·
Tnx Marty, just what I needed, guess I won't be using BB side-rods,
looks like the center-to-center spacing is about 2 1/2 inches, thats
about 3/8 inch less than I'm using for the Northern... Tnx for the
offer Ray, but with that much obvious diff, guess I won't need a mic
reading... At 2 1/2 inches, those flanges must close to rubbing each
other, this is a USA BB we're talking about, right ???
Tnx, Paul R...
 
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