rumbling or thumping or roaring sound?

2003 FORD F-150
73,500 MILES
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JOHNROGERS
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hello, i have a 2003 ford f150 4x4 and i have a sound coming from underneath my truck. it kinda sounds like a whomping,rumbling or thumping or roaring sound(only way i know how to describe it). it quits when i come to a complete stop but when i get up to about 10-15 mph it starts-whomp-whomp-whomp. it not a constant sound sounds like its gets louder every few whomps. do you have any ideas. thanks

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Dec 5, 2011 at 11:45 PM
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JACOBANDNICKOLAS
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Check u joints, check wheel bearings...
Dec 5, 2011 at 11:47 PM
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JOSH.TANNER
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i had a metal ring that encircled the drive shaft underneath i think its supposed to serve as a weight but it cam lose on mine and gave some inconsistant thumping sounds and a variable vibration while driving
Dec 6, 2011 at 12:41 AM
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CJ MEDEVAC
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NEIGHBORS'S CAT TAKE MISSING?

GOTTA GET UNDER THERE AND DO SOME HANDS ON

THE MEDIC
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Dec 6, 2011 at 1:05 AM