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Old 02-15-2015, 01:27 AM
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Default lighter control arms

I'm in the market for upper control arms and I saw control arms on Ebay. they are made by SPC the part#92740. Has anyone these arms or know anything about them? Also can C4 upper controls be used on a C3? Any info would be great! Thanks Kevin.
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Old 02-15-2015, 02:13 AM
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The SPC uppers remedy the lack of adjustment on the upper a arms. I needed extra as my current frame is tweaked.

I got the first side done and realized that the bump stop was no longer any good.





Did a search and found the camaro guys were having the same problem. Some just let the SPC a arms hit the frame, but that means
a lot of suspension travel.

Here are a couple of Camaro solutions I found. Apparently, this is what SPC suggested to them as a fix.









I bought a Competition Engineering Kit and modified one bracked. The bottom bracket bolts on the lower a arm.




Final solution:

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Old 02-15-2015, 03:16 AM
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I have them as well... Nice pieces, easy to adjust and very light weight. The tall balljoint option is another plus for these arms
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Old 02-15-2015, 03:04 PM
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What did you do to limit travel? Looking for new ideas for future changes.
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Old 02-15-2015, 03:22 PM
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Lower shock mounts were lowered on the control arm, so the shock limits travel. Poor mans version of a shorter body shock to give me more travel at my ride height
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Old 02-15-2015, 03:51 PM
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To limit travel, I use Chevy pick-up tailgate straps. One end has a slot with a clip, so you simply slip it over the end of a 3/8" Allen-head bolt (round end, just the right size), and when you want to drop the suspension further, just lift the clip on the end of the cable and slip it off the bolt.
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Old 02-15-2015, 06:00 PM
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These? Or something similar.
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Old 02-15-2015, 06:33 PM
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That's the ones. Strong and light. I use them front and rear.
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Old 02-16-2015, 12:33 AM
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I can't go look at mine right now to see, but wouldn't it be possible to mount some aftermarket rubber snubbers on the frame in a fashion similar to the stock ones? I wouldn't think the impact force would be as hard in unloading as it is in compression over a bump, so the tubular arms would be able to handle that. I would think. Straps & chains seem pretty crude. Simple and effective yes, but crude.....

These a-arms are on my list but several places down right now.
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Old 02-16-2015, 10:32 PM
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I notice that the sway bar is not connected. wouldn't the sway bar help limit some of the travel if not all? And where on the control arms does the frame hit?
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