The Mack R Series is a line of Class 8 heavy-duty trucks that started back in the 1960s by Mack Trucks.

The Mack R series is currently discontinued. It was replaced by the Mack B series. However, their models are still around as they were built to grow and prosper.

The Mack RD was built until 2002. They run on diesel and gasoline engines and feature an all-wheel drive for highway trips.

The most common model of the 822 series is the Mack RD 822 SX, a 1986 breed with a 15’ dump box created by Ox Box. It has a 12-speed gear, power steering, 20 front, TRTXL 1070 transmission, double frame, and 44,000 rears on Hendrickson Spring Suspension.

The second most common model is the RD 822 SXX, made in 1999, 1998, and 1997. It has 150,000 pounds Mack Plantaries, 9.86-ratio rears, a Mack 500-ED engine, 24,000 pounds front, an 18-speed transmission (plus 2 auxiliary transmission, electric brakes…It has a price tag of over $600,000, depending on the state of the truck.