Peterbilt tractor design changes

Feb. 23, 2009
Peterbilt Motors Co. is making some exterior and interior changes to its line of trucks and tractors

From Fleet Owner Senior Editor Sean Kilcarr: Peterbilt Motors Co. is making some exterior and interior changes to its line of trucks and tractors. Ken Marko explains how various aerodynamic improvements to the Model 384 tractor reduces drag by 24 percent.

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