FTR Associates said orders were down 22 percent from the same month a year earlier.
Trucks weighing more than 80,000 pounds in 23 states must either unload cargo or travel on secondary roads.
Teamsters, safety advocates, railroads oppose heavier trucks, while ATA favors bill to allow them.
There's only a couple effective lemon laws in the country that actually provide protection from "defective" Class 8s for buyers. If you've as yet missed my March cover story in Overdrive on the subject, click ...
A Colorado state senate bill would require heavy trucks to stay in the right lane on steep grades.
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