Re: GM Truck Comparison
Not exactly sure but I believe that the HD is the new designation of the 2500/3500 series truck--several years back GM had 2 different versions of both the 2500 and the 2500HD--not sure when the changeover occured but now its 1500/2500HD/3500HD--as far as the old version they HD is definately a different vehicle than the "standard" truck---able to haul and tow a bigger payload than the standard vehicle --more stout suspension/brakes/cooling and different power trains available in a HD vs, a regular truck
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