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Strange rear-end "thud" when easing off brakes...?

Ducati1098

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Clubs
 
Jeez...it better not be a transmission issue.
I was almost thinking u-joints but it would be all the time.
There are no u-joints either, but it does sound like one going bad.
 

Jazer

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Weird. 7k on my OBX and I have never experienced this.
 

tn3sport

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differential clutch.... outside of tolerance....
But, I don't know anything about the Ford e-locker. What you are describing is typical of a limited slip differential clunk. the e locker is likely magnetic and might not even have a clutch. Assuming it did, it clunks when it engages/disengages when out of spec. i.e. shims...
 

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Razorbak86

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differential clutch.... outside of tolerance....
But, I don't know anything about the Ford e-locker. What you are describing is typical of a limited slip differential clunk. the e locker is likely magnetic and might not even have a clutch. Assuming it did, it clunks when it engages/disengages when out of spec. i.e. shims...
Good reference info posted by @Rocketeer Rick

M220 e-Locker Differential Deep Dive Overview
 

Brockdog12

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Undecided
Mine is an all stock OBX. 8800 miles, noticed this issue recently. Could be a rear end issue, but to me feels like hill assist letting go. Anyone have a GoPro they could mount pointed at the differential area and test drive? Maybe see what’s happening externally when letting off the brakes.
 

Ford Motor Company

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Happening to mine too. It’s so annoying. I’m glad I’m not the only one. Sometimes it’s so noticeable that I look behind me to make sure no one tapped my rear bumper. Going to a second dealer on Wednesday to check it out. First dealer said NPF and blamed it on a lift. It was 💯 doing it before the lift so I know for a fact it’s not caused by that.
Hi there! Will you send us a message with your VIN and your local Ford dealer? I can look into things on my end.
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