Upper Control Arm Removal - Pontiac GTO Forum
Pontiac GTO Pontiac GTO Forum

» Auto Insurance
Wheel & Tire Center

Go Back   Pontiac GTO Forum > The 1964-1974 Pontiac GTO > 1964-1974 Tempest, LeMans & GTO Technical Discussions
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

GtoForum.com is the premier Pontiac GTO Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-16-2013, 06:13 AM   #1 (permalink)
 
Oldeboy's Avatar
 
Join Date: Sep 2012
Location: Indiana
Posts: 106
My Photos: (0)
Upper Control Arm Removal

I am rebuilding the front suspension on my 1970 GTO. (bushings, new springs, tie rods, etc) I am having trouble getting the driver's side upper control arm off the frame bolts. The steering shaft is preventing me from getting enough travel to clear the end of the frame bolts.
I haven't been able to pop the frame bolts out of the splined from holes.
Any guidance out there.
Thank you.
Oldeboy is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-16-2013, 09:05 AM   #2 (permalink)
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 6,886
My Photos: (2)
Yes. You need an air chisel with a blunt tip. They'll buzz right out with no damage, but you need to be careful. You can leave the nut on the end to protect the threads. When you reinstall, be sure to get it started in the splines before you pull it back in.
geeteeohguy is online now   Reply With Quote
Old 01-16-2013, 10:21 AM   #3 (permalink)
 
Oldeboy's Avatar
 
Join Date: Sep 2012
Location: Indiana
Posts: 106
My Photos: (0)
Ok I can get an air chisel over lunch break. Where on the assembly should I apply the blunt chisel to loosen these bolts? Thank you.
Oldeboy is offline   Reply With Quote
Old 01-16-2013, 10:50 AM   #4 (permalink)
 
FlambeauHO's Avatar
 
Join Date: Nov 2011
Location: Pensacola, FL
Posts: 1,064
My Photos: (5)
Install the nut on the end of the bolt and hit it with the air chisel right on the tip of the bolt driving towards the head. Good luck
FlambeauHO is offline   Reply With Quote
Old 01-16-2013, 11:52 AM   #5 (permalink)
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 6,886
My Photos: (2)
And, I've done it this way too, when I can't get to the bolt tip with the drift/point: Take a prybar and put pressure on the bolt tip by prying against the exhaust manifold. You want to pre-load the bolt. Then, from the wheel side, you can give a quick zap with the air chisel with the drift bit to the bolt HEAD or the frame next to the bolt head, and the bolt will come right out. It works every time and won't damage anything, but you need a bit of finesse. Good luck.
geeteeohguy is online now   Reply With Quote
Old 01-16-2013, 12:19 PM   #6 (permalink)
 
Oldeboy's Avatar
 
Join Date: Sep 2012
Location: Indiana
Posts: 106
My Photos: (0)
Thanks guys. I picked up the air chisel over lunch and will try these techniques out tonight.
Oldeboy is offline   Reply With Quote
Old 01-16-2013, 07:32 PM   #7 (permalink)
 
Oldeboy's Avatar
 
Join Date: Sep 2012
Location: Indiana
Posts: 106
My Photos: (0)
I managed to get these off using a variety of these methods. Thanks for the tips.
Oldeboy is offline   Reply With Quote
Old 01-17-2013, 09:07 AM   #8 (permalink)
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 6,886
My Photos: (2)
Great. And now you have the air chisel to buzz the old bushings out and zap the new ones in. The exact technique is posted here if you want to check it out. Just do a thread search.
geeteeohguy is online now   Reply With Quote
Old 01-17-2013, 09:34 AM   #9 (permalink)
 
Join Date: Jul 2009
Posts: 124
My Photos: (0)
Couple of questions:

1. According to the shop manual, one is supposed to use an ordinary nut to reseat the splined bolt, as opposed to the lock nut. Why is this, what is the difference between an ordinary nut and a lock nut?

2. Can the control arm be removed by unfastening the steering shaft from the gear box and either moving it aside or removing (instead of knocking out the bolts)? I ask because I am also considering removing the gear box to replace input shaft seal.

TIA
1970 Lemans is offline   Reply With Quote
Old 01-17-2013, 12:20 PM   #10 (permalink)
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 6,886
My Photos: (2)
The lock nut is an interference fit and not easy to turn. The splines on the bolt are fine and easily damaged. Much easier to pull the bolts back in with regular nuts. A lock nut will tend to grab and twist the bolt, which is a bad thing. I cheat when I do them:
when the arm is back in position, I start the bolt, push the shaft against the frame, put a shim-pack or washers on the outside of the shaft, and pull the bolt back in using the washers/shims as a spacer, so I don't have to turn the nut forever to pulll the bolt back in place. And yes, you can remove the arm if you pull the column. Sometimes the exhaust manifold will hang you up, sometimes not. Many ways to skin the cat...
geeteeohguy is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac GTO > 1964-1974 Tempest, LeMans & GTO Technical Discussions


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Upper control arms in backward? Topkat 1964-1974 Tempest, LeMans & GTO Technical Discussions 10 10-25-2010 06:19 PM
Upper Control Arm Bump Stop sixeightGTO 1964-1974 Tempest, LeMans & GTO Technical Discussions 6 10-18-2010 02:10 PM
rear upper control arms 67/04gto 1964-1974 GTO parts for sale (Price & Pictures Required) 0 10-19-2008 08:00 PM
Upper control arm CRACKED MaL 1964-1974 Tempest, LeMans & GTO Technical Discussions 3 09-04-2008 10:25 PM
Where to get upper control arm bolts? GTO394 1964-1974 GTO General Discussion 2 06-24-2006 06:41 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:24 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.