Leaf spring issue

Tiny
CANNON1349
  • MEMBER
  • 2011 FORD F-150
  • 3.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 320,000 MILES
Hi, I can move the rear suspension up and down together. I can bend the leaf springs by hand. Maybe the springs themselves or the shackle is the issue? No noise while driving, but I can move it up and down with weight on the vehicle.
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Friday, March 20th, 2020 AT 2:28 PM

15 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

That is because the springs are not loaded. It looks normal to me. Do you see any cracks in the springs themselves? Are the shackles in good condition?

Let me know.
Joe
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Friday, March 20th, 2020 AT 2:48 PM
Tiny
CANNON1349
  • MEMBER
I guess they are, bushings look okay.
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Friday, March 20th, 2020 AT 2:49 PM
Tiny
KASEKENNY1
  • EXPERT
Do both sides do this? Clearly the spring should feel solid and not move much at all so I suspect it is broken at some point. You want to inspect the entire pack and see if you can find where it is broken. I attached a picture of a dramatic case but it will be the idea.

The shackles there that you mentioned in your other post are only intended to keep the leaf springs from fanning out so they are not the issue.

Thanks again for getting this new post started. I understand it may seem silly but the internet search engines actually punish the websites when they are not separated out like this which is why we require it.

Let me know what you find and we can go from there. Worse case, I would go to a salvage yard and get a new leaf spring pack.
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Friday, March 20th, 2020 AT 2:49 PM
Tiny
CANNON1349
  • MEMBER
Both sides do it, yes. I noticed one side I can grip the spring pack and compress with my hand, and another pack stays compressed, no movement.
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Friday, March 20th, 2020 AT 2:51 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Inspect the leafs for cracks. Keep in mind, the springs are fully unloaded. When you pull up on the axle, it will move.
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Friday, March 20th, 2020 AT 2:54 PM
Tiny
KASEKENNY1
  • EXPERT
I agree with Joe. You should be inspecting these for movement loaded and not unloaded. If you have movement with the leaf springs like this when the suspension is loaded then it is probably cracked.
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Friday, March 20th, 2020 AT 2:56 PM
Tiny
ASEMASTER6371
  • EXPERT
Hi there,

Just thought I would throw something out there.

I think that is a lot of movement. The clamps are what caught my eye.

It almost looks like it is missing a leaf. How old are the springs?

Roy
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Friday, March 20th, 2020 AT 3:00 PM
Tiny
CANNON1349
  • MEMBER
Roy I thought the same thing. They are from a 2011 Ford truck 320,000 miles, but they both have the same number of springs, just one moves in the clamp, the other does not.
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Friday, March 20th, 2020 AT 3:02 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
I watched the video again. I honestly see nothing out of the ordinary. The clamp may have stretched which I have see many times. The axle is pulling down on the leafs, so when you pull upward, they will move easily. What are your thoughts, Roy?

Joe
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Friday, March 20th, 2020 AT 3:09 PM
Tiny
ASEMASTER6371
  • EXPERT
I agree Joe. I am concerned there may be too much up and down movement. He may also have worn out shocks as well.

Roy
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Friday, March 20th, 2020 AT 3:14 PM
Tiny
CANNON1349
  • MEMBER
Well, with weight on it I can't do much by hand, so maybe it's the shocks? They compress up and down too without weight.
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Friday, March 20th, 2020 AT 3:36 PM
Tiny
ASEMASTER6371
  • EXPERT
There should be resistance if the shocks are good. How old are they?

Roy
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Friday, March 20th, 2020 AT 3:42 PM
Tiny
CANNON1349
  • MEMBER
These are original.
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Friday, March 20th, 2020 AT 3:45 PM
Tiny
ASEMASTER6371
  • EXPERT
Okay, 9 years old is a long time for shocks.

I think Joe may be right about the springs but I am looking at the up and down movement which I think is shock related.

Roy
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Friday, March 20th, 2020 AT 4:00 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Wow! Original and 300,000 + miles? They have to be bad. LOL

Let us know if we can help.
Joe
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Friday, March 20th, 2020 AT 8:27 PM

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