Throwout Bearing, Clutch Fan or Water Pump going out??

[SKing]

Can a water pump or clutch fan can make a rattle noise at certain speeds? I've been told its my throw-out bearing going bad but I have no problems shifting gears.....
1995 Ford Ranger 6 clyinder 3.0 motor, 2WD Manual transmission
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My truck only does it once it get hot, the temp hand jumps up, but as soon as I press in the clutch, the sound stops and the temp hand drops back down once the sound stops and I lower my speed back down.
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I don't have any problems shifting gears up or down. Also, I can coast while holding the clutch in or take it out of gear and coast without any noise.
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As I said, the rattle noise, like hitting a rumble strip, only starts once the motor gets hot and I try to get over 40 mph. Now as long as I maintain speed and not give it gas to increase the speed, the noise and vibration doesn't start.
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If I stay at 35 mph I have no problem Any suggestions? It is NOT the wheel bearings, brakes or rotors. Already had them checked
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I just hate the idea of paying high garage bills to keep changing parts after parts.....sigh

 

[Andy D]

W A G is something belt driven.

 

[RonD]

If it was throw out bearing noise would get worse with clutch pedal down.......for sure.

Water pump will almost always start leaking water/coolant from a weep hole under its bearing when bearing is failing, so no leak means probably not water pump.

See if fan is loose