Suspension varience - Impala Tech
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post #1 of 6 (permalink) Old 04-17-2014, 08:27 PM Thread Starter
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Suspension varience

I just replaced all the rear bushings with Energy Suspension. Not sure if this is related as I never looked at this before. When I jacked up the car from the rear end center the right wheel (Passenger) is about 2" lower than the left side. Grant it; I just changed the rear upper and two lower control arm bushings and have yet to torque everything down which seems even more problematic unless of course the passenger suspension is heavier. I would think things would be balanced.

The only solution I can think of is to use a jack to list up the low side torque everything down and move to the other side and see what I have.

Has anyone experienced a similar situation and figured out how to resolve it? If so, I sure could use some help on this one.

Thanks,
Mike > msp177
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post #2 of 6 (permalink) Old 04-17-2014, 09:51 PM
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I don't have anything for you on the wheel to wheel-lip spacing difference. I'd suspect the difference in coil-spring static pressure is different over age.

When I did my control arms, I put blocks under both the front and rear wheels (or wood) too keep things level but allow me under the car to torque the arms down.
If you have them, you could also put jack stands under the axle and still torque things down.

Good to know you didn't want to torque things down with the rear-end hanging down on it's own weight!

HOW A NOVICE REBUILDS A 66 IMPALA CONVERTIBLE:
http://www.impalas.net/forums/blog.php?u=1432
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post #3 of 6 (permalink) Old 04-17-2014, 10:03 PM Thread Starter
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Thanks for the input. Perhaps with the body off the frame this is the issue? Or maybe I need to unbolt the upper control arm bracket from the cross member since I changed out the bushings? Form what I can see it appears as though I have 2" difference in rear wheel height.

I plan to do more measurements and figure out where I am off. Any thoughts or knowledge in this area would be very helpful.
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post #4 of 6 (permalink) Old 04-19-2014, 10:17 PM
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Is it possible that some of your body mounts have disintegrated, or the area around them rusted through? That could cause the body to not be level.
My trunk area mounting points were rusted through, I had to weld in new metal there and slip in some new body mount bushings.

Got pics?

HOW A NOVICE REBUILDS A 66 IMPALA CONVERTIBLE:
http://www.impalas.net/forums/blog.php?u=1432
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post #5 of 6 (permalink) Old 04-20-2014, 08:27 AM
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As you raise the body and frame up, the panhard bar will pull the rear end housing off center. Try disconnecting the bar and see if it levels things out.
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post #6 of 6 (permalink) Old 04-21-2014, 08:47 AM Thread Starter
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Thanks for the input. I got it. All I had to do was put the frame/wheels on the ground and bounce it a few times and everything leveled out. The bolts were all loose. Now that things are settled I can lock tight and torque things down to spec. I believe we are looking at 80 lbs for the 3 rear control arm bolts. Anyone have a different spec?
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