Upper A arms - Impala Tech
Brakes & Suspension Conversion Questions & more

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post #1 of 5 (permalink) Old 09-05-2016, 12:48 PM Thread Starter
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Upper A arms

I restored our 65 Impala convertible years ago. Here recently I have noticed the front suspension feeling a little loose. I put the car up on the lift to check things out. Everything was tight with no play. I put a bar under the driver front tire and lifted. That is when I felt the looseness. Moved about a 1/2 inch. At first I thought, ball joints. Turned out the 2 bolts that hold the upper A arm to the frame were loose. Installed two new self locking nuts and the car steers great again. Just a heads up, check those bolts and nuts.
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post #2 of 5 (permalink) Old 09-05-2016, 03:45 PM
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If they used self locking crimp nuts they shouldn't have loosened from the factory torque value of 85 foot pounds.

Did you loosed all of your shims for camber adjustment? I would imagine they would all fall or vibrate out with a half inch of play in the upper control arm movement.

Big Dave
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post #3 of 5 (permalink) Old 09-05-2016, 04:37 PM Thread Starter
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The 65-70 B body cars don't use shims. They have a eccentric on the lower control arm for adjustment. I have lock nuts on them now.

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post #4 of 5 (permalink) Old 09-06-2016, 02:10 PM
BA.
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I only just now noticed that we have a Facebook-inspired "Like" button. Sweet.

Just to be clear, I "liked" the fact that you gave us a Top-Tip, not that your loose suspension could have led to an ugly crash or anything. lol

HOW A NOVICE REBUILDS A 66 IMPALA CONVERTIBLE:
http://www.impalas.net/forums/blog.php?u=1432
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post #5 of 5 (permalink) Old 09-06-2016, 08:38 PM Thread Starter
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I didn't notice that LIKE button befor. Cool. No it wouldn't cause a accident but it sure wear a set of tires.

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