Forum Discussion
ShinerBock
Feb 17, 2016Explorer
IDoMyOwnStunts wrote:
So why are the "3/4" and "1" tons called HD or Heavy Duty trucks and the classes of trucks just above them but below big-rigs called "Medium Duty"?
They are called HD or SD by their manufacturers for marketing, but in reality they are light duty trucks going by the overall truck classification.
Classes 1, 2, and 3 are light duty.
Classes 4, 5, and 6 are medium duty.
Classes 7 and 8 are heavy duty.
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