Orders for heavy duty Class 8 trucks tumbled 43% Y/Y (down 24% M/M) in December to just 21,300 units, representing the second consecutive YoY decline in 2018 and a 25-month low on a seasonally adjusted basis, according to ACT Research.
https://www.zerohedge.com/news/2019-01-05/heavy-duty-truck-orders-tumble-43-two-year-low