The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-15-2024, 09:46 PM   #1
Railroadman
Registered User
 
Railroadman's Avatar
 
Join Date: Jun 2016
Location: Rochester NY
Posts: 117
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?
Attached Images
   
Railroadman is offline   Reply With Quote
Old 11-15-2024, 11:23 PM   #2
SkinnyG
Registered User
 
SkinnyG's Avatar
 
Join Date: Feb 2012
Location: Beautiful BC, Canada, eh?!
Posts: 2,267
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.
__________________
1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS
1977 Silverado: Shortboxed & dropped, potato-potato
V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag
Lotus Super 7 Replica: Scratch-built street-legal rollerskate
SkinnyG is online now   Reply With Quote
Old 11-16-2024, 10:33 AM   #3
Railroadman
Registered User
 
Railroadman's Avatar
 
Join Date: Jun 2016
Location: Rochester NY
Posts: 117
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!
Attached Images
 
Railroadman is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com