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Old 11-15-2024, 09:46 PM   #1
Railroadman
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Front hub - do I have a problem?

'66 C20. I'm seeing 2 lines inside the hub, diametrically opposite each other and each centered on the square notch. I THINK they are something from casting or machining, but want to be sure they're not cracks. Opinions?
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Old 11-15-2024, 11:23 PM   #2
SkinnyG
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Re: Front hub - do I have a problem?

Cast metals do not usually crack only partway, they don't really flex - they just crack completely. What does the other side look like? Any cracks on the machined surface?

You could hang it by a wrench or on a nail and give it a wee rap with a hammer - if it rings, it's likely fine, if it's more of a thud, it may actually be cracked.
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Old 11-16-2024, 10:33 AM   #3
Railroadman
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Re: Front hub - do I have a problem?

I believe you are right, the opposite side does not have any "crack" extending, and looking closely it appears there is actually a slight bevel or "V" shape to it. When I get to the other one I'll clean it up and look at that one closely, my bet it they will both have the same marks.

Thank you!
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