I have had two trucks in my shop in the last few weeks that seem like the clutch is shuddering, except it does not happen at take off, it happens after you are moving and then apply the gas all the way to the floor. it will only happen in first, second, or third gear, and neither truck will not do it in fourth, fifth, or sixth gear no matter how hevy you are loaded or how hard you lug them.
any ideas?
any ideas?
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