Persistent Rear Clank During Flex – Need Ideas

[bronco504a]

This is that opportunity for a D60 that the OP needs

Any opportunity/ excuse to spend more money but a good idea to be honest

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[bronco504a]

That's pretty much my best guess as well. But honestly fixing an axle housing with a cast iron Center section seems like a bit of a liability to me. Total replacement I feels like it makes the most sense.

As what i have understood from the guys the thrust Angle shows a very minimal bend and it doesn’t affect anything except the tire wear of one of the tires.. we have a lot of shops here that work on this type of damage and even total bend differentials… even re-building some parts of it, so im not worried a lot in regards of the damage + I opened up the diff and checked all the parts to check for any damage that could cause the sound… did not find anything..

 

[bronco504a]

Update, I changed the rear upper and lower arms, and i changed the shaft. Still the same issue

 

[SierraBronco]

Update, I changed the rear upper and lower arms, and i changed the shaft. Still the same issue

Shaft=drive shaft?

 

[bronco504a]

Shaft=drive shaft?

Yes

 

[JL8jeff]

Is your jack loose in that compartment? Or is your exhaust close to hitting anywhere?

 

[userdude]

Might need a stereo upgrade.

 

[SierraBronco]

Might need a stereo upgrade.

If you only hear the clunk but don’t feel it, does the clunk exist?

 

[bronco504a]

Is your jack loose in that compartment? Or is your exhaust close to hitting anywhere?

What jack?… I moved my exhaust by hand its not it.. 🥲

If you only hear the clunk but don’t feel it, does the clunk exist?

or should we and more stuff that would add more clank noise so it could be consistent

 

[bronco504a]

Might need a stereo upgrade.

Heavy metal?

 

[bronco504a]

Finally surrendered, ill try to live with the clank sound for a while till we get a chance to swap the differential with another bronco to test if it would solve the issue

 

[JL8jeff]

What jack?… I moved my exhaust by hand its not it.. 🥲

The jack is under the rear cargo floor. There is also some storage under there so you may want to check and see if something is moving around.

 

[bronco504a]

The jack is under the rear cargo floor. There is also some storage under there so you may want to check and see if something is moving around.

Thought about it, but many times i had guys outside the car and the sound was clearly outside the car… and you feel it under your feet while you are sitting anywhere in the car 🥲🥲🥲

 

[F-Spot]

Your 2023 shouldn't have this problem, but it won't waste much time to check it anyways...the passenger side rear upper control arm mount at the frame.

 

[bronco504a]

Bro thank you a lot!!! It is the same exact sound!!! And to be honest i was thinking that i could have a crack there but told myself why the hell would i have a crack there!!!

turns out there is a week point and it could happen…

This is the next thing ill check thank u a lot

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