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post #1 of 3 (permalink) Old 05-07-2019, 03:33 PM Thread Starter
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Clunk coming from rear

When accelerating then letting off the accelerate Im getting a slight clunking from the rear of my car, it's mostly when the car is cold, sounds like something is knocking back and forth in the trunk area, haven't got a chance to get her on a lift yet. Not sure if this is a problem people run into? The car is a 1991 Thunderbird sport 5.0 with 48k on her.
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post #2 of 3 (permalink) Old 05-07-2019, 09:06 PM
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Not many miles for sure, but I'd start with checking the rear wheel bearings, just jack the rear wheel off the ground a few inches, grab the inside bottom and the outside top and see if there is any play. If it's not the wheel bearing then check half shafts, then diff, then drive shaft.
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post #3 of 3 (permalink) Old 05-07-2019, 09:54 PM
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If it only happens when accelerating then letting off, I would suspect the diff mount bushings.
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-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
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