In 1958, the Farmall and International 40/60 series were introduced. As usual, the Farmalls were row-crop versions, most commonly equipped with front wheels placed side by side. The Internationals, on the other hand, were general-purpose tractors with a wide front axle. The angular design clearly differed from earlier models. The Farmall 140 was still an offset tractor — a successor to the old A model — which remained in the lineup for nearly 40 years. The Farmall 240 had shed even more of its former roots and now resembled the larger models more closely. These models shared a 4+1 transmission and the same 2.0-liter gasoline engine as the previous models, with a bit more power being extracted. The advertised power ratings increased significantly when ads switched from indicating engine power at the pulley to engine power. The 240 now had a water pump for cooling. As an alternative to the Fast-Hitch system, it was now possible to get a standard-type 3-point quick coupling device. The electrical system was now 12 volts.

By the time of the next model update in 1963, the Farmall 140 was redesigned to match the 404/504 models and remained in the lineup until 1979.

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