Preliminary North American Class 8 orders in December were 30,300, marking the fourth consecutive month of year-over-year gains, ACT Research reported. Year-ago orders were 22,800. Orders in 2022 had remained below 2021 levels until an all-time record for any month was reached in September. Final numbers for December are due later this month.\nLearn more about your ad choices. Visit podcastchoices.com/adchoices