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Thumping UJoints?

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Old Mar 14, 2025 | 10:38 AM
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Default Thumping UJoints?

Took the 85 out from winter storage and took her out for a 30 mile round trip to clean out the cobwebs. About 3 miles from home after going over a set of railroad tracks I started getting a pretty loud thumping that sounded like it was right under me. Quieted down some when on the accelerator and became very noticeable when braking and coasting at slow speed. I didn’t dare push it over 30 the rest of the way home.
My first thought was UJoints, so I put it on jackstands and inspected the halfshafts. I did noticed a wheel bearing going out but it wasn’t growling or making any noise. Looking at the shafts I could not find any play whatsoever. I turned the wheels and didn’t notice any slack.
looking online told me that UJoints failure would be fairly obvious on inspection. I’m worried it’s something else.

I don’t want to throw money at it if it’s not the UJoints, although new ones won’t hurt anyway.

I’ve attached a video and captured the noise.
Attached Files
File Type: mov
vcompress_2.mov (19.85 MB, 14 views)
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Old Mar 14, 2025 | 11:17 AM
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Did you check the driveshaft?
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Old Mar 15, 2025 | 03:04 PM
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Guys, it was just loose lugnuts 🤦‍♂️
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Old Mar 16, 2025 | 07:33 AM
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Originally Posted by LarryBoyG
Guys, it was just loose lugnuts 🤦‍♂️
I treat lug nut tightening like I treat unloading a gun. Check, double check and a final triple check. Dan
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