Talk:Tractor unit

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[edit] Axle count

I reduced "...between two and five axles" to "...two or three axles". I can find no references or photographs to four-, five- or more-axle prime movers. Four axles might occur either as twin-steer or triple-drive, but with "usually" earlier in the sentence, they are covered as an exception. --Scott Davis ^Talk 06:10, 19 November 2006 (UTC)