Clunking noise in rear end

Frenchy906

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So, for the past two weeks, I’ve had this mild, but incredibly annoying clunking sound coming from the rear.

I thought maybe it was my tire inflator rattling, I’ve got a Milwaukee inflator that I keep tucked up close to the rear seat back, so I removed that. Noise persisted. So I ended up taking the few things in the vehicle out that I thought could be possible culprits. Noise was still there.

Last night, I took my vehicle down to get a quick wash, and when I came home, I grabbed a microfiber towel to clean the inside of the rear window off, as I always do, and when I popped the rear window open, I heard the noise.

Turned out to be the upper hinge bracket that’s bolted to the vehicle was quite loose. Grabbed my torx plus socket and I tightened it a full rotation before I could apply any torque to it, and the rattling went away.

Took it for a ride this morning just to confirm, and that was the problem. 🤣

My Bronco has 8,500 miles on it. Seems weird to me that something like that could have loosened up, but something to just keep in mind!
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BobbyTony

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Perfect! When I first saw the thread I cringed as I just spent $4k fixing the clunk in my truck's rear diff. 🤣🤣
 
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Frenchy906

Frenchy906

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Perfect! When I first saw the thread I cringed as I just spent $4k fixing the clunk in my truck's rear diff. 🤣🤣

Nope. Nothing too terribly scary. 🤣🤣

Just posted it in case someone else has an unfindable rattle, this could be a potential area to check.

Because, I’ll be honest, never in a hundred years would I have thought to check there, just so happened to open it to clean it and bam.
 

BobbyTony

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Nope. Nothing too terribly scary. 🤣🤣

Just posted it in case someone else has an unfindable rattle, this could be a potential area to check.

Because, I’ll be honest, never in a hundred years would I have thought to check there, just so happened to open it to clean it and bam.
Agreed! I'd expect that more in an RV, lol
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