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Old 07-19-2015, 02:25 PM   #1
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Suspension making popping noise

Just installed h&r super sport lowering springs on stock struts and shocks with panhard bar and control arms and it makes a popping/clunking noise when going over little crack and bumps on the road on passenger front and sometime rear
The driver side doesn't at all
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Old 07-19-2015, 02:28 PM   #2
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It will for a few weeks, will eventually go away once your suspension is settled down. Your springs are quite aggressive for stock struts and shocks, might as well replace them sooner than later

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Old 07-19-2015, 04:27 PM   #3
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Almost 6000 miles ago I lowered the Mustang with Sportline springs.............the car had 2700 miles on it with stock suspension.............. and used the stock strut mounts and stock struts. It started creaking and popping sound on the drivers side. I had the alignment checked and although it's at the top end of Ford's Caster spec and the bottom of the Camber spec it has never stopped making the noise. I've done some serious corner carving in the past 6000 miles.....................the stock strut mounts and struts/shocks were never designed to be lowered and with the H&R springs you are lower than my Sportlines.
When you lowered your car did the fasteners get torqued back to factory specs?
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Old 07-19-2015, 09:28 PM   #4
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Its your strut mount. You need to upgrade the mount to the GT500 mounts or go with a caster/camber plate. Many of us get the pop when lowering and its fixed with the parts I just mentioned. I went with the maximum motor sports cast camber plates and the problem is solved. It will also let you align you car properly when that time comes as well.
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Old 07-19-2015, 09:36 PM   #5
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As stated a few times, it's the strut mount. One time use and if any of the ball bearings fell out or the mount was disturbed from the disassembly and reassembly it will do this. It won't go away. Just get worse.


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Old 07-19-2015, 11:08 PM   #6
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Quote:
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Its your strut mount. You need to upgrade the mount to the GT500 mounts or go with a caster/camber plate. Many of us get the pop when lowering and its fixed with the parts I just mentioned. I went with the maximum motor sports cast camber plates and the problem is solved. It will also let you align you car properly when that time comes as well.
If I get gt500 strut mounts will they fit koni yellow struts and shock because I am upgrading to them in a month or so if not what do it do
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Old 07-19-2015, 11:41 PM   #7
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Its your strut mount. You need to upgrade the mount to the GT500 mounts or go with a caster/camber plate. Many of us get the pop when lowering and its fixed with the parts I just mentioned. I went with the maximum motor sports cast camber plates and the problem is solved. It will also let you align you car properly when that time comes as well.
What should I get for right now for the stock struts and shock
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Old 07-20-2015, 03:02 AM   #8
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I'm probably not gonna be liked for this but in my personal experience...

I started with lowering springs and an adjustable bmr pan hard bar. I'd hear little creaks and pops in the rear and also the occasional thud from the front passenger side.

I then went with a pair MM/CC plates. No change.
I then went with a bmr upper and lower control arms, the ones with the spherical bearings. No change.

I then ditched the cc plates and springs and stock shocks and went with BC coilovers and the noise got hella worse plus my rear bump stops were riding on the frame so I had to trim them which seriously diminished my ride quality.

The reason the car was so noisy, I believe is because I lowered the car too much. I drastically changed the geometry of the suspension, weight distribution, center of gravity and the ride quality suffered.

Although, the car did handle far better than it did when it was stock and looked fresh as ****. It just sounded like a hunk of crap in the cab.

Food for thought.


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Old 07-20-2015, 05:02 PM   #9
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Quote:
Originally Posted by grabber12 View Post
Its your strut mount. You need to upgrade the mount to the GT500 mounts or go with a caster/camber plate. Many of us get the pop when lowering and its fixed with the parts I just mentioned. I went with the maximum motor sports cast camber plates and the problem is solved. It will also let you align you car properly when that time comes as well.
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Old 07-20-2015, 05:13 PM   #10
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Quote:
Originally Posted by karanvirgill5.0 View Post
If I get gt500 strut mounts will they fit koni yellow struts and shock because I am upgrading to them in a month or so if not what do it do

Yes, just get 05-10 KONI yellows or oranges. The top of a 11-14 strut won't work with that mount. No difference other than the length


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Old 07-20-2015, 06:32 PM   #11
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Quote:
Originally Posted by olerodder View Post
Almost 6000 miles ago I lowered the Mustang with Sportline springs.............the car had 2700 miles on it with stock suspension.............. and used the stock strut mounts and stock struts. It started creaking and popping sound on the drivers side. I had the alignment checked and although it's at the top end of Ford's Caster spec and the bottom of the Camber spec it has never stopped making the noise. I've done some serious corner carving in the past 6000 miles.....................the stock strut mounts and struts/shocks were never designed to be lowered and with the H&R springs you are lower than my Sportlines.

When you lowered your car did the fasteners get torqued back to factory specs?

How low can you go on the factory struts just wondering in your opinion. I have the SR on the OEM ones and it's a little bouncy but manageable.


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Old 07-20-2015, 08:27 PM   #12
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The Steeda HD Mounts are able to align the front end properly and get rid of the weak OE mounts ... they offer more adjustability than the GT500 mounts.

If you would like ... I can set you up with one of our sales professionals to provide forum pricing & get you dialed in.

Best Regards,

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Old 07-20-2015, 08:35 PM   #13
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Forum pricing?
Yes please.
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Old 07-20-2015, 09:28 PM   #14
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I have super sports with boss 302 adj struts and shocks and it is quiet as can be.
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Old 07-21-2015, 01:43 PM   #15
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I have eibach pro street S coil overs so I wouldn't know about any fitment on the koni's. Oxford5pointoh seems to know so I would go with what he said about buying the 05-10s

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Old 08-06-2015, 03:48 AM   #16
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Got the strut mount tightened a little bit more and bam no more noise
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Old 08-07-2015, 07:59 AM   #17
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Excellent - glad you were able to resolve it!

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