Help - Rear Shackles Banging! - Team Camaro Tech
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post #1 of 13 (permalink) Old Apr 8th, 18, 05:47 AM Thread Starter
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Help - Rear Shackles Banging!

A couple of years ago I replaced my rear springs... OEM equivalent from Rick's. I haven't driven much and everything seemed fine for first year. Now took car out of storage and every little bump in the road, rear shackles are banging frame rails. A friend said it seems like springs may be too long? But they were/seemed fine when I first installed. Any thoughts? Appreciate any ideas before I replace the springs. Also appreciate any suggestion for new springs vs Ricks?

...my car was used in Diner's, Drive-Ins and Dives Philly are taping a few years ago too!
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Last edited by bob67convert; Apr 8th, 18 at 07:03 AM.
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post #2 of 13 (permalink) Old Apr 8th, 18, 05:58 AM
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Re: Help - Rear Shackles Banging!

Post some pics. How old are the shocks?

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post #3 of 13 (permalink) Old Apr 8th, 18, 06:22 AM Thread Starter
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Re: Help - Rear Shackles Banging!

Shocks are about 8 years old... but maybe 1K miles. A friend just suggested to bag the original look and buy an adjustable coil over to start.
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post #4 of 13 (permalink) Old Apr 8th, 18, 06:33 AM
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Re: Help - Rear Shackles Banging!

Quote:
Originally Posted by bob67convert View Post
Shocks are about 8 years old... but maybe 1K miles. A friend just suggested to bag the original look and buy an adjustable coil over to start.
That is pretty extreme. It will cost at least $2k. Makes more sense to spend a little time to troubleshoot the problem first imho.... Post a few pics....

Don
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post #5 of 13 (permalink) Old Apr 8th, 18, 06:40 AM Thread Starter
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Re: Help - Rear Shackles Banging!

I agree... why I am seeking opinions and ideas. There are no obvious signs of the cause... shocks fail? springs fail?
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post #6 of 13 (permalink) Old Apr 8th, 18, 06:49 AM
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Re: Help - Rear Shackles Banging!

Generally, rockers are parallel with ground, fluids full and spare tire with jack, when viewing.
Shackles should be a right angle to frame rail.

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post #7 of 13 (permalink) Old Apr 8th, 18, 07:03 AM Thread Starter
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Re: Help - Rear Shackles Banging!

Mine are definitely leaning towards rear to start.
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post #8 of 13 (permalink) Old Apr 8th, 18, 07:04 AM
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Re: Help - Rear Shackles Banging!

Your description says "shackles banging frame rails". Can you see where it is hitting? In my mind the shackles can't hit the frame unless the rear end shifts from side to side. It's more likely for the rear of the spring to hit the rear tail pan or the frame rail but IMO unlikely with low mileage springs and bushings. I'm wondering if the noise isn't inside one or both of the shocks.

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post #9 of 13 (permalink) Old Apr 8th, 18, 07:07 AM
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Re: Help - Rear Shackles Banging!

It could be the rear axle traveling up and bumping the tail pipes that pass over. Mine used to do that. Since the shackles travel aligned with the frame rails I don't see how they can be bumping the frame rails.

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post #10 of 13 (permalink) Old Apr 8th, 18, 07:10 AM Thread Starter
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Re: Help - Rear Shackles Banging!

Trying to post pic of shackle position... for some reason not letting me?

Rear not moving... the spring is actually what is hitting the rail when the shackle goes back.
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post #11 of 13 (permalink) Old Apr 8th, 18, 07:30 AM
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Re: Help - Rear Shackles Banging!

You either have a broken spring or a bad shock beings
the spring actually hits the frame rail. Most likely the shock.
Cycle the suspension by hand.

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post #12 of 13 (permalink) Old Apr 17th, 18, 05:52 PM
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Re: Help - Rear Shackles Banging!

Perhaps the shackles are too long. They would contact the rear panel under the bumper. Correct shackles are short enough to move under the panel. They would also make the rear end sit a bit lower.

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post #13 of 13 (permalink) Old Apr 17th, 18, 06:13 PM
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Re: Help - Rear Shackles Banging!

Check to see if you have a broken spring where they meet the bushing in the front mount. Could be the spring is broken in the front which is allowing spring to move backward too much.

Kevin


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