The Allis-Chalmers 7000 series was introduced in 1973 and was very successful. In designing the successor, the basic structure was kept the same, and the focus was on improving the features that had been requested. The main wishes were for a more modern cab and a four-wheel-drive model. The 8000 series came onto the market in 1981. The power of the smallest model, the 8010, remained the same and it had a 4.9-liter turbocharged six-cylinder engine. The second smallest model switched to a 7.0-liter engine. The largest model, the 8070, had 10 horsepower less than the previous 7080, so that a Power Shift transmission with 6-speed quick shift could be installed. The basic transmission, the Power Director, was equipped with a 2-speed quick shift, but most tractors were purchased with the Power Shift.

The wheelbase of the four-wheel-drive model was remarkably short, and with its 10-meter turning radius, it was more maneuverable than its competitors. The four-wheel drive was engaged electrically. A limited-slip differential lock was available as an option for the front axle. The load-sensing hydraulics remained the same. In addition to the previous 3-ton lifting capacity, a 3.7-ton lifting device was available. The cab was 38% more spacious than before. More powerful models were also in development, but Allis-Chalmers ran out of money before they could be completed.

KHD purchased the Allis-Chalmers Agricultural Equipment Company in May 1985. The tractor brand changed to Deutz-Allis. However, Deutz had no intention of manufacturing tractors in the USA, and the last tractors at the Allis plant were produced in December 1985. After that, the Deutz-Allis brand appeared on pale green tractors imported from Germany.

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