Regarding toad alignment, make sure your Blue Ox is level, coach to toad. A couple of inches off, up or down, can affect the toad's front end loading, and counter an otherwise correct alignment. Such a slight discrepancy contributed to (but wasn't the exclusive cause of) our toad abnormally wearing the inside edge of the front tires. Roadmaster Vancouver helped correct the off-level toad-to-coach issue, but the damage had been done; subsequent realignment of the toad's front end made the worn spots on the tires cause a new slight vibration when driving it.
Another related issue that frequently throws toad alignments out of whack, and many coach owners don't know about, is turning hard from a straight dead stop. Such an action "leverages" the towbar and toad to the side, putting damaging pressure on wheel/linkage components. Get in the habit of making turns
while rolling only; so pull forward a bit after a stop, dead straight or otherwise, before turning your steering wheel. That way the toad's wheels are rolling when the coach's tail begins to swing, and the they can harmlessly follow it. It won't do any good to get your toad aligned if you go right back out and undo the job.
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-Joel