Class 5, 6 and 7 truck engines and transmissions were rated in J.D. Power's U.S. Medium Duty Truck Engine and Transmission Study of vocational application models.
The J.D. Power and Associates’ 2012 Customer Satisfaction Study found Freightliner as the highest ranking heavy-duty truck manufacturer, followed by Volvo in second, and Peterbilt in third place in both the on-highway and vocational segments ...
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