The successor to the 8700 and 9700 models was introduced in the spring of 1979 as the TW series. It was the first Ford lineup in which all-wheel drive models were taken into account during the design. However, the turning circles were still impressive because the front axle was the old ZF with a side driveshaft. The TW models matched the preceding models in appearance and dimensions but were lighter than before. The lubrication and cooling systems of the engines were improved, and the oil pump was now driven by the crankshaft. The steering had its own pump. The transmission was made faster, and the rear axle, differentials, and power take-off were reinforced compared to their predecessors.

The TW-10 and TW-20 were nearly identical in terms of technology, except for the turbo, while the intercooler-equipped TW-30 was slightly more robust and had a more powerful hydraulic system. Its front end was longer due to an additional fuel tank. The clutch on the TW-20 and TW-30 was 14 inches and equipped with a ceramic clutch plate. These models also had hydraulically assisted brakes. The TW-30 featured a new, more powerful hydraulic pump. TWs were manufactured in Belgium.

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