The creeper is bolted to the transmission and it does slow the wheels down with a 2:1 reduction ratio. IH designed this for mowing heavy grass, plowing gardens (that's what I was doing), pushing snow, and hauling with a smaller engine. It improves the torque at the expense of tractor speed. I think the problem may be the roll pin attached to the shift poppet in the creep drive unit, is that plausible?
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