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Low frequency thumping. Driveline bearing?
Posted: Fri Mar 23, 2007 9:28 am
by cseger1
When I pull away from a stop there is a rapid deep thumping sound that sounds like it may be coming from the rear end. Its usually 5 fast thumps just as I let the clutch out fully. If I am rolling along it doesn't happen, only from a stop.
Posted: Fri Mar 23, 2007 11:45 am
by asavage
Have you checked the driveshaft center support bearing's rubber support? I think you can see it without even really getting under the truck, if you can get your head low enough and have a good flashlight. The rubber gets bad and lets the driveshaft knock around.
NAPA HB128020, $97
NAPA Beck-Arnley 1013459, $124
I might have a decent used one around here somewhere.
Posted: Fri Mar 23, 2007 10:31 pm
by cseger1
Funny you should mention that bearing, thats exactly what is broken. I went over a curb and it got way worse. I don't have any free time right now so my mechanic is getting the gig.