rumble around 68-71mph

Dlish715 · #1 (**permalink**) 02-09-2013, 12:17 PM

I'm getting a rumble/grinding noise right around 68-71, it got quite a bit worse once I put a little load on my truck. I have a 01 f350 dually. Its a comparable sound to running over the rumble strip on the highway, any ideas?

350 ONE TON · #2 (**permalink**) 02-09-2013, 01:14 PM

Probably the carrier bearing or support bearing whatever you want to call it on the rear drive shaft

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DeGolyerent · #3 (**permalink**) 02-18-2013, 03:32 PM

Mine was doing the same thing and it was the u-joint at the back next to differential, in fact it has done it twice.
John

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Mission7.3 · #4 (**permalink**) 03-02-2013, 04:53 AM

I am having the same problem from 60-70 you start to hear a little vibration then from 70-80 its a very annoying sounding vibration, only thing I think looked out of shape was my driveshaft support/carrier bearing. Will be getting that replaced asap and will let you know if it helped my truck.

Dlish715 · #5 (**permalink**) 03-03-2013, 02:55 PM

I replaced my carrier bearing and my u joints runs great now. The rubber around the carrier bearing was shot.

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Mission7.3 · #6 (**permalink**) 03-03-2013, 03:42 PM

Yep I think that's my same problem. Will have it done this week hopefully.

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