97 Rodeo: Rumbling from front end

Hello,
I have a 1997 Rodeo S V6 with about 88000 miles. For the last few days, as the car gets to about 50mph in 2WD, the front end starts rumbling and there is an even, moderate vibration that can be felt
through the driver's seat, but not as much in the steering wheel. The same occurs in 4WD, but seems to happen at somehwat lower speeds.
It does not appear to be engine or transmission related, as the sound continues regardless of RPM or load on the engine. It is only related to speed.
Any thoughts about what I have going on here? Bearings? Ball Joints?
Thanks!
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Tires maybe? You could rotate front to rear and see if that makes a difference. They might just need balancing.

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How long has it been since you inspected and repacked the wheel bearings? Usually a bad wheel bearing will start to make itself known at much lower speeds, as long as you know what to listen for. However, if it's bad enough, you'll most certainly hear it at highway speeds. However, the vibration you are feeling may very well be tires/wheels. Like the other poster said, try rotating the fronts to the backs and see if that helps - and while you're doing that, clean and repack your wheel bearings. All you need are some seals and you may even end up doing yourself a brake job. steve

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If you're in snow country, it could be snow stuck to the wheel - causing an imbalance.

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Lemme guess . . . OEM Bridgestone Dueler H/T 684's? Ditch 'em, pay for a GOOD wheel alignment, check air pressure every two weeks, and rotate / balance the new tires every 5000 miles.

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Well...the Rodeo is no more. The Universal joint was completely shot. Repairing it was going to cost 2/3 of the blue book value...it has been traded in. Thanks all for your suggestions!
Dave Wolgast

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