Q: Truck makes drumming sounds at the back

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At speeds 35 mph and over, the truck starts making the drumming sounds. The noise comes from the back of the truck, from underneath. It usually occurs when I accelerate fast or get over a holes on the road. The noise lasts only for a moment. It would also increase as the speed increases. If the track has a bit more load on it, the noise would be more noticeable at lower speeds. What might be causing the noise?

Hello. This could be a differential or driveline issue. You state the noise is momentary which rules out a lot of common issues such as tire defects and wheel bearings. Chassis ears would pinpoint the source of the noise. If you would like to have this checked, a qualified professional from YourMechanic can come to your car’s location to inspect the noise for you and let you know what should be done.

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