bad discovery-Lower control arm problem on drivers side - Team Camaro Tech
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post #1 of 28 (permalink) Old Jun 18th, 08, 11:59 PM Thread Starter
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bad discovery-Lower control arm problem on drivers side

I just took off the drivers side LCA and discovered someone has used a large over sized bolt through the bushing. It looks like it was a quick fix when it was done. I need help on this one

This shows the over sized hole and a smaller hole is just underneath it on the cross member. I have more close ups if needed.




The bolt broke when I was wrenching it off with a 15/16" socket.


67Camaro 396BB 750Holley, edlebrock performer,280isky,3.42 posi, turbo 350,stage 2 shift kit, 2800 stall, MSDready to run distributor, headers, 2.5"exhaust, Hotchkis(1.5"/2"drop).(orig.Deep water blue/light blue dlx inter, v8 column shift/bench seat)

Last edited by johnny67; Jun 19th, 08 at 12:00 AM. Reason: spelling
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post #2 of 28 (permalink) Old Jun 19th, 08, 12:12 AM
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Re: bad discovery-Lower control arm problem on drivers side

I had a problem on my Chevelle where the bolt was loose or something and wallowed the holes in the frame out. I fixed it using plate (don't remember if 1/8" or 3/16"). I cut the plate bigger than the hole and drilled a new hole for the bolts and welded it to the frame. I did my best to center the new hole with the existing hole and it worked out fine.


Does it look like that area cracked/broke at one time and someone tried to quick fix it?

Ray
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post #3 of 28 (permalink) Old Jun 19th, 08, 11:01 PM Thread Starter
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Re: bad discovery-Lower control arm problem on drivers side

thanks Ray,
Your solution makes sense. So I would weld a piece on the outside of the frame so it does not interfere with the control arm I guess. What are the chances of saving the LCA?

here is a pic with the proper bolt in the shaft, I wonder what kind of bushing they used?



I hope this is a good enough pic to see what I am dealing with.


67Camaro 396BB 750Holley, edlebrock performer,280isky,3.42 posi, turbo 350,stage 2 shift kit, 2800 stall, MSDready to run distributor, headers, 2.5"exhaust, Hotchkis(1.5"/2"drop).(orig.Deep water blue/light blue dlx inter, v8 column shift/bench seat)

Last edited by johnny67; Jun 19th, 08 at 11:23 PM.
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post #4 of 28 (permalink) Old Jun 20th, 08, 03:21 AM
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Re: bad discovery-Lower control arm problem on drivers side

Grind the bottom picture flat because this surface is the bushing contact. Any chips or tags will damage/eat into the rubber and tear it.

On the outside, weld in place a Gr 8 washer, 1/8 inch thick, and grind off the cad plating with the same ID as the other side.

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post #5 of 28 (permalink) Old Jun 20th, 08, 05:40 AM
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Re: bad discovery-Lower control arm problem on drivers side

From your pictures, the LCA looks OK. Looks like you can press out the old bushing and put in a new bushing with the correct size ID.

Daral (67 RS/SS 350)
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post #6 of 28 (permalink) Old Jun 20th, 08, 07:57 AM
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Re: bad discovery-Lower control arm problem on drivers side

Yeah, control arm looks fine. Looks like they drilled out the stock bushing?? Just get a new bushing pressed in there. Grade 8 washer would have probably worked, I just didn't like the fit and wanted it tighter. I had the plate laying around so made my own. The bolt fits it pretty snug. With yours being cracked like it looks in the pic, I'd make the plate bigger for more support.

Ray
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post #7 of 28 (permalink) Old Jun 20th, 08, 07:58 AM Thread Starter
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Re: bad discovery-Lower control arm problem on drivers side

Those are some great ideas guys. I will do what you said. Here is another pic of the other end of the LCA attatchment to the frame. Does it need a washer also?




67Camaro 396BB 750Holley, edlebrock performer,280isky,3.42 posi, turbo 350,stage 2 shift kit, 2800 stall, MSDready to run distributor, headers, 2.5"exhaust, Hotchkis(1.5"/2"drop).(orig.Deep water blue/light blue dlx inter, v8 column shift/bench seat)
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post #8 of 28 (permalink) Old Jun 20th, 08, 09:54 AM
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Re: bad discovery-Lower control arm problem on drivers side

Would not be a bad idea to reinforce there also.

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post #9 of 28 (permalink) Old Jun 20th, 08, 10:02 AM Thread Starter
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Re: bad discovery-Lower control arm problem on drivers side

thanks Everett,

would a mig welder be the best for this type of job? I want to do this job myself but I have not welded since high school days with oxy/ace and arc welding.

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post #10 of 28 (permalink) Old Jun 20th, 08, 10:05 AM
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Re: bad discovery-Lower control arm problem on drivers side

MIG would be fine, clean grease-free area.

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post #11 of 28 (permalink) Old Jun 20th, 08, 03:16 PM
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Re: bad discovery-Lower control arm problem on drivers side

I agree, Mig will work great. I welded mine on with my Lincoln 140

Ray
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post #12 of 28 (permalink) Old Jun 21st, 08, 12:50 AM Thread Starter
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Re: bad discovery-Lower control arm problem on drivers side

One problem I thought of was that still have to weld a washer on the inside of the cross member since it is oversized also. I have an idea how to do it but it is hard to explain. Of course I will just tack weld everything until it is all lined up, but any ideas out there would be appreciated!




67Camaro 396BB 750Holley, edlebrock performer,280isky,3.42 posi, turbo 350,stage 2 shift kit, 2800 stall, MSDready to run distributor, headers, 2.5"exhaust, Hotchkis(1.5"/2"drop).(orig.Deep water blue/light blue dlx inter, v8 column shift/bench seat)
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post #13 of 28 (permalink) Old Jun 21st, 08, 05:01 AM
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Re: bad discovery-Lower control arm problem on drivers side

the only problem with just welding a washer to the outside of the mounting bracket is that the steel sleeve in the bushing needs to have a solid interference fit with the frame brackets to properly locate the control arm.
i'd probably see if you can find a knowledgeable parts guy and find a bushing that fits the control arms and the proper length but has the larger inside diameter and use the bigger hardware- maybe a fullsize car or mid 70's A body or pickup or something like that- but i'm kinda goofy like that.

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post #14 of 28 (permalink) Old Jun 21st, 08, 06:43 AM
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Re: bad discovery-Lower control arm problem on drivers side

Or install full poly or Del-Alum and not worry about the stock, saw-toothed inner sleeve.

pdq67



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post #15 of 28 (permalink) Old Jun 21st, 08, 07:37 AM
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Re: bad discovery-Lower control arm problem on drivers side

Are you pretty handy with the mig? You could tack the washer in place and then back fill it from the inside. Then grind it smooth.

Ray
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