Author Topic: separate ball joint from arm  (Read 4018 times)

Offline T Lea

  • Global Moderator
  • Full Member
  • ****
  • Posts: 188
separate ball joint from arm
« on: October 12, 2010, 08:59:02 AM »
On a 68-70 style lower control arm in addition to the rivets there are spot welds that hold the ball joint to the arm. How are people removing these without damaging both? Or do you drill them out and weld the holes?

Offline CharlesTurner

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 7687
Re: separate ball joint from arm
« Reply #1 on: October 12, 2010, 09:38:53 AM »
Are you talking about the lower plate?  If so, that doesn't have to come off to restore the arms.
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline T Lea

  • Global Moderator
  • Full Member
  • ****
  • Posts: 188
Re: separate ball joint from arm
« Reply #2 on: October 12, 2010, 01:46:56 PM »
isn't the ball joint attached to it?

Offline CharlesTurner

  • Charles Turner
  • Administrator
  • Hero Member
  • *****
  • Posts: 7687
Re: separate ball joint from arm
« Reply #3 on: October 12, 2010, 05:27:16 PM »
isn't the ball joint attached to it?

No, the internal parts just seat inside the cup.  See this blog post with pics:

http://65kresto.blogspot.com/2010/05/5310.html
Charles Turner - MCA/SAAC Judge
Concours Mustang Forum Admin

Offline gtamustang

  • CPM
  • Global Moderator
  • Sr. Member
  • ****
  • Posts: 297
Re: separate ball joint from arm
« Reply #4 on: October 13, 2010, 10:40:03 AM »
The two plates for the lower ball joint separate fairly easliy once the rivets are out. I would not recommend re-using the gasket, but keep it as a template for making new ones. Also, when you re-assemble the ball joint, you will need to clamp/press the two plates together and then hammer the plate tabs to get a tight seal.

After I tumble the LCAs (sans ball joint), I use gun bluing and a torch to get the heat treated appearance of the plate that is spot welded to the LCA.

Regards,
Pete Morgan

Offline 68 S Code

  • Hero Member
  • *****
  • Posts: 1084
Re: separate ball joint from arm
« Reply #5 on: October 13, 2010, 04:15:35 PM »
Peter, if you stay away from abrasives and just use a product like evapo-rust you won't have to blue it as the chemical doesn't harm the finish. i just did my LCA last week and they came out great. Let them sit in the solution for 2 days and they were ready to be refinished with clear and black.

Offline gtamustang

  • CPM
  • Global Moderator
  • Sr. Member
  • ****
  • Posts: 297
Re: separate ball joint from arm
« Reply #6 on: October 13, 2010, 04:46:16 PM »
I am well aware of evapo-rust and use it regularly. Sometimes you don't have the benefit of first choice in how to restore a particular part and have to make do with what you have and how you want the part to appear.

BTW, evapo-rust does not remove paint and on the LCAs, I want the paint removed so that i can tumble the part and then re-dip in semi-gloss black to refinish correctly.

Regards,
Pete Morgan

Offline T Lea

  • Global Moderator
  • Full Member
  • ****
  • Posts: 188
Re: separate ball joint from arm
« Reply #7 on: October 13, 2010, 08:55:47 PM »
isn't the ball joint attached to it?
Got it. The gaskets were really holding tight. Finally came apart.

Offline Brant

  • Sr. Member
  • ****
  • Posts: 497
    • Virginia Classic Mustang Inc
Re: separate ball joint from arm
« Reply #8 on: October 14, 2010, 12:04:32 AM »
We just got these in from a supplier.  You guys may want to comment on the correctness of the retainer in this kit.  I do not have an original 67-up lower control arm handy right now.



http://www.virginiaclassicmustang.com/67-73-LOWER-BALL-JOINT-SEAL-RETAINER-AND-GASKET-P159003.aspx


Offline gtamustang

  • CPM
  • Global Moderator
  • Sr. Member
  • ****
  • Posts: 297
Re: separate ball joint from arm
« Reply #9 on: October 14, 2010, 01:39:44 PM »
Brant,

From the pic the retainer and gasket look very similar to original ones. Send me a sample and I will compare it to a 67 LCA that i will dismantle just for the comparison. I can post the pictures as well.

Regards,
Pete Morgan

Offline J_Speegle

  • Administrator
  • Hero Member
  • *****
  • Posts: 24620
Re: separate ball joint from arm
« Reply #10 on: October 14, 2010, 06:24:57 PM »
Think I know who is doing these (mentioned them at last visit since we were using them to do some A arms for a 67 Shelby project) so I'll swing by their shop when I get back from the Judges meeting.

Thanks for sharing
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline Brant

  • Sr. Member
  • ****
  • Posts: 497
    • Virginia Classic Mustang Inc
Re: separate ball joint from arm
« Reply #11 on: October 14, 2010, 07:20:25 PM »
Think I know who is doing these (mentioned them at last visit since we were using them to do some A arms for a 67 Shelby project) so I'll swing by their shop when I get back from the Judges meeting.

Thanks for sharing

Jeff,

Daniel Carpenter supplies these.