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  1. GM Powertrain
    227,000 miles, 4.3 liter with a 5 speed on the floor...running 72mph down the highway today and got a sudden start of a whine so loud it drowned out the radio. (I know, turn it up) A rest area was handy so I pulled in, finding in the process that I could not downshift and the clutch pedal didn't...
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