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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-04-2012, 02:17 PM   #1
riz
Registered User
 
Join Date: Oct 2011
Location: hudson,wi
Posts: 805
oblong rally rim lug nut holes??

I have one rally rim out of my set that has slightly oblong lug nut holes. Should i be concerned? What can I do to make sure I have no problems once putting it on the truck?

Thanks in advance,

RIZ
riz is offline   Reply With Quote
Old 04-04-2012, 03:13 PM   #2
old Rusty C10
Robert Olson Transport
 
old Rusty C10's Avatar
 
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,281
Re: oblong rally rim lug nut holes??

that rim was in all likelyhood run loose and it oblonged out.. that being said id replace the rim.. it will eventually damage your lugs and could come off
__________________
Bob



1951 International running on a squarebody chassis


"If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board"
http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!)


PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport

Live each day to the fullest.. you never know when fate is going to pull the rug out from under you...
I hate cancer!!
old Rusty C10 is offline   Reply With Quote
Old 04-04-2012, 09:19 PM   #3
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: oblong rally rim lug nut holes??

Quote:
Originally Posted by old Rusty C10 View Post
that rim was in all likelyhood run loose and it oblonged out.. that being said id replace the rim.. it will eventually damage your lugs and could come off
yup....check your studs are ok if the rim was not like that before
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Old 04-05-2012, 11:31 AM   #4
Zebb
Registered User
 
Zebb's Avatar
 
Join Date: Nov 2011
Location: Dalton, NH
Posts: 165
Re: oblong rally rim lug nut holes??

Scrap the rim.
Zebb is offline   Reply With Quote
Old 04-05-2012, 12:23 PM   #5
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,180
Re: oblong rally rim lug nut holes??

And now, for the opposing point of view:

I've saved a couple Corvette rallys by dressing the lug holes with a countersink, to clean them up. The caveat here is that I was also going from a 1/2 stud to a 9/16 stud, so the larger lug nut would also give me more bearing surface area. That's what's on the car now and they've been 136 mph over several seasons without issue.

So - you could try touching up the holes with a countersink, but would probably need to check them afterwards with the production lug nut to make sure you were satisfied with the amount of contact. Some amount of subjective interpretation would be required there. Don't try this at home if you are not comfortable with that.

K
__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/
Keith Seymore is offline   Reply With Quote
Reply

Bookmarks


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 01:50 PM.


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