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Worn LCA ? #424790 07/31/09 02:37 PM 07/31/09 02:37 PM
Joined: May 2003 Posts: 201 CA P Pierre71 OP super street
Pierre71 OP super street P Joined: May 2003 Posts: 201 CA	Rebuilding a spare set of arms and noticed the torsion bar socket has quite a bit of play in it. I am going to weld in a stiffening plate to the bottom, so I know I can squeeze the halves of the arm together to take out play in the direction of the torsion bar. But what about radial play? Is there a min/max spec for that or should I not worry about it? I know they pretty much stay put once everything is under the suspension load, just taking precautions so I don't have to do this all over again.

Re: Worn LCA ? [Re: Pierre71] #424791 07/31/09 05:03 PM 07/31/09 05:03 PM
Joined: Mar 2003 Posts: 18,679 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,679 Fresno, CA	Some have more play than others, but when you go to bring the two halves together cut the weld on one side of the LCA bumper plate. Then when you squeeze the halves back together you can weld that back up and this will eliminate a lot of the play.

Re: Worn LCA ? [Re: Jim_Lusk] #424792 07/31/09 05:36 PM 07/31/09 05:36 PM
Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a. west master
west master Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a.	i think your first paragraph is on the same path as what jim said. but if the hex is worn to the point where the bar is floating in there i would replace them.

Re: Worn LCA ? [Re: west] #424793 08/01/09 12:36 AM 08/01/09 12:36 AM
Joined: May 2003 Posts: 201 CA P Pierre71 OP super street
Pierre71 OP super street P Joined: May 2003 Posts: 201 CA	Sorry, didn't mean the socket itself but rather that whole assembly with the arm that meets the ride height screw. I wasn't going to cut the bumper plate, just squeeze it together and weld the bottom plate on. Now that you mention it, squeezing the halves of the arm together would put the bumper plate in a bind. Good call. I squeezed the arm in the vice until I couldn't turn the torsion bar socket, then backed up just a smidge. This eliminated most all the play and will have to do for another 40 someodd years.

Re: Worn LCA ? [Re: Pierre71] #424794 08/01/09 05:15 AM 08/01/09 05:15 AM
Joined: Jan 2003 Posts: 27,480 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,480 So Cal	Quote: Sorry, didn't mean the socket itself but rather that whole assembly with the arm that meets the ride height screw. I wasn't going to cut the bumper plate, just squeeze it together and weld the bottom plate on. Now that you mention it, squeezing the halves of the arm together would put the bumper plate in a bind. Good call. I squeezed the arm in the vice until I couldn't turn the torsion bar socket, then backed up just a smidge. This eliminated most all the play and will have to do for another 40 someodd years. That's what I did over 10 years ago. I can't tell you that one thing made a difference, but it seemed the right thing to do. 5390117-LCAweldprocedure.jpg (67 downloads)

Re: Worn LCA ? [Re: autoxcuda] #424795 08/01/09 12:05 PM 08/01/09 12:05 PM
Joined: May 2003 Posts: 201 CA P Pierre71 OP super street
Pierre71 OP super street P Joined: May 2003 Posts: 201 CA	Quote: That's what I did over 10 years ago. I can't tell you that one thing made a difference, but it seemed the right thing to do. Yep, I found your pic in a search. I just didn't know what to do on the side-side play. Apparently "the squeeze" helps with that too.

Re: Worn LCA ? [Re: Pierre71] #424796 08/01/09 06:07 PM 08/01/09 06:07 PM
Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada Magnum master
Magnum master Joined: Jan 2003 Posts: 5,791 Hamilton, Ontario Canada	I wouldn't worry about that slop. When it's all screwed together. All that stuff moves together anyways. 69 Super Bee, 93 Mustang LX, 04 Allure Super

Re: Worn LCA ? [Re: Magnum] #424797 08/01/09 06:28 PM 08/01/09 06:28 PM
Joined: Sep 2005 Posts: 6,516 Santa Cruz, California L Lefty master
Lefty master L Joined: Sep 2005 Posts: 6,516 Santa Cruz, California	The FSM for my 66 Coronet says up to .050" play is OK. I think that's because the rubber in the front strut rod mount allows the LCA to move fore and aft. I did the same squezee and weld job as Autoxcuda when I boxed the LCA's. I didn't like the idea of the toe changing when braking hard due to the rubber in the front strut mounts. I also used Reilly Motorsports adjustable strut rods which get rid of the rubber and replace it with a heim joint. http://www.reillymotorsports.com/store/home.php?cat=266

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