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Strengthening Stock Parts

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Old 01-09-2007, 11:16 PM
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Default Strengthening Stock Parts

Im in the middle of a general "Upgrade" of my car..among other things I was wondering if it would be worth my $$ to add strengthening plates to the bottom of my LCA's and the side of my torque arm.

Im not looking into going racing but simply making the existing parts better and stronger

What do ya think
Old 01-09-2007, 11:35 PM
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https://ls1tech.com/forums/suspension-brakes/625913-stock-stamped-lca-questions.html
Old 01-09-2007, 11:41 PM
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Ahhh..boxing.....


Sound like its not reall a good Idea..
Old 01-10-2007, 08:21 AM
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If you're only planning to street drive the car and not race it, why not leave the stock TA and LCA's and just replace the LCA bushings with 1LE parts? If you have some money burning a hole in your pocket or you're having some sort of problem directly attributable to the stock TA and/or LCA's (not noted in your post) then I'd go straight to high-quality aftermarket control arms (poly/rod or rod/rod) and TA and be done with it. JMHO.
Old 01-10-2007, 09:00 AM
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I have boxed stockers that I got used, and pressed 1LE
bushings into. All told it was about the same as buying
any other set of aftermarket LCAs. But I have solid
rubber bushings (not a fan of poly or rod ends) and it
feels tight and quiet.
Old 01-10-2007, 01:19 PM
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I bought some used 1LE LCAs for $25 and boxed them myself w/ a TIG. Four years later they're holding up fine through many 1.5 60'.
Old 01-11-2007, 07:59 PM
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OEM LCA's are designed to flex rotationally through the body of the LC arm. This stops the bushing from overcompressing at certain points where it contacts the bushing housing.

Boxing them stops that from happening. I've seen several cars with rod style (solid) LCA and you can see the poly bushing buldged in certain areas.

Imagine if you had one wheel bottomed out (all the way up into the wheel well) and the other wheel hanging freely. Your LCA will want to rotate. If the arm body doesn't allow it then then the bushing is forced to.
Old 01-12-2007, 08:15 AM
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Originally Posted by Mark A. Rogalski
OEM LCA's are designed to flex rotationally through the body of the LC arm. This stops the bushing from overcompressing at certain points where it contacts the bushing housing.

Boxing them stops that from happening. I've seen several cars with rod style (solid) LCA and you can see the poly bushing buldged in certain areas.

Imagine if you had one wheel bottomed out (all the way up into the wheel well) and the other wheel hanging freely. Your LCA will want to rotate. If the arm body doesn't allow it then then the bushing is forced to.
Then I suppose all LCAs that aren't rod ended are worthless then.
Old 01-12-2007, 10:13 AM
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Originally Posted by BADFNZ
Then I suppose all LCAs that aren't rod ended are worthless then.
Actually that's not far from the truth...
Old 01-12-2007, 01:21 PM
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Originally Posted by BADFNZ
Then I suppose all LCAs that aren't rod ended are worthless then.
Tubular (boxed, solid) SFC's with rigid bushings (polyurethane) are not totally worthless. They work decent on perfectly smooth roads as long as you dont make any turns.
Old 02-21-2007, 03:07 PM
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Why is "binding" so bad. Doesnt that hold the rear axle in the same way that a sway bar does? Can someone explain why that is bad for turning?
Old 02-21-2007, 07:41 PM
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It limits movement in a bad way. It overlimits movement and puts additional stress on the mounting points which can lead to failure.
Old 02-21-2007, 11:53 PM
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Originally Posted by Fulton 1
If you're only planning to street drive the car and not race it, why not leave the stock TA and LCA's and just replace the LCA bushings with 1LE parts? If you have some money burning a hole in your pocket or you're having some sort of problem directly attributable to the stock TA and/or LCA's (not noted in your post) then I'd go straight to high-quality aftermarket control arms (poly/rod or rod/rod) and TA and be done with it. JMHO.
Totally agree about the stock parts and 1LE bushings!




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