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Re: Vin designations for vehicle weight and AWD?
Posted to Emissions Forum on 4/15/2006

AFAIK, there are none. Ford & GM trucks use the 6th character to specify truck class. IE: 1 means a 150(Ford) or 1500 (GM), 2 means a 3/4 ton , and 3 signifys a 1 ton. Dodge, I dunno.

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