Brooks McCormick entered the International Harvester scene with high hopes but soon realized the challenges ahead. In 1971, as the direct descendant of Cyrus McCormick, he sat at the helm, longing for IH to introduce new tractors. He was painfully aware that their chief rival, John Deere, had claimed the top spot in ag equipment sales the previous decade, while IH was burdened by debt and an overly diversified manufacturing portfolio.

Stark Differences in Design

The IH 2+2 tractor stood out with its distinct design. Unlike conventional 4WD tractors, its 2+2 cabs were located behind the articulation joint, providing the operator with an excellent view of the equipment at work. The power plants were mounted ahead of the front axle, increasing the weight on the front-drive axle and enhancing traction. When pulling an implement, the draft load remained straight, similar to a standard 2-wheel-drive tractor, increasing tractive efficiency. This unique design made it a true crossover tractor, offering row-crop farmers the best of both worlds. 1: The placement of the cabs and power plants gave the IH 2+2 tractor a competitive edge. It allowed farmers to operate more efficiently and effectively, especially when working in row-crop fields. The design innovations were a result of IH's commitment to innovation and meeting the needs of farmers. 2: These design features set the IH 2+2 apart from other tractors on the market. It was a testament to IH's engineering prowess and their ability to think outside the box. Farmers who adopted the 2+2 tractor found it to be a game-changer in their operations.

A True Crossover Tractor

This tractor offered a range of features that made it a favorite among row-crop farmers. The engine compartment was completely enclosed, keeping the engine clean and reducing noise. Yet, the hood easily rolled forward for maintenance and repair. The cabs were quiet, featuring IH's Control Cab, providing a comfortable working environment. 1: The Category III 3-point hitch with IH's exclusive torsion-bar low-link sensing system was another advanced feature. It automatically adjusted the three-point height when encountering tough spots in the field, ensuring smooth operation. The hydraulic power system was designed to sense the amount of power needed and deliver only that, saving energy. 2: Later models like the 6388 and 6588 came with radial belt tires as standard equipment, boosting tractive efficiency. The 15.8-foot turning radius thanks to the 39° articulation steering was a surprise to many buyers, making it easy to navigate through rows.

2+2 Model History

Produced from 1979 to 1981, the 2+2 models included the 3388 with 130.5 PTO hp and 436 engine cubic inch displacement, and the 3588 with 150 PTO hp and 466 engine CID. In 1980 to 1981, the 3788 with 170.5 PTO hp was added. From 1982 to 1984, the 6388 and 6588 with 130.6 PTO hp and 150 hp respectively were produced. In 1983 to 1984, the 6788 with 170 hp was introduced. In 1985, the Super 70 Series 7288 with 175 PTO hp and 7488 with 200 PTO hp were produced. Models 7688 with 195 hp and 7888 with 300 hp were in development but never saw production. 1: The history of the 2+2 models shows IH's continuous efforts to improve and expand their product line. Each model had its own unique specifications and features, catering to different customer needs. 2: The production years and model variations highlight the importance of the 2+2 tractor in IH's history. It was a significant part of their lineup during a specific period.

Use of Existing Major Components

Despite its unique design, the 2+2 tractor employed a large number of tried-and-true components from other IH tractors. The rear half of Model 1086 2-wheel-drive tractors was used, equipped with an 8-gear transmission. IH also made use of existing 3-point hitch and PTO from 86 Series tractors. The power plants were based on existing models like the Model DT-436 turbo-charged unit for the 3388 and the Model DT-466 turbocharged engine for the 3588. Only the front ends were new and outsourced from a company in Japan. 1: Using existing components allowed IH to introduce the 2+2 models quickly. It demonstrated their ability to leverage existing technologies and resources to bring a new product to market. 2: This approach also helped in reducing development costs and time. It showed IH's strategic thinking in balancing innovation with practicality.

Rapid Succession of New 2+2 Models

The first two 2+2 models, the 3388 and 3588, were followed by the 3788 in 1980. Two years later, the Model 6388 was introduced, followed by the 6788 in 1983. In 1984, the Super 70 Series 2+2 was launched. Despite some tractor historians' claims, this rapid replacement was not a sign of design flaws but a way to capitalize on the tractor's popularity. 1: The successive introduction of new models shows IH's responsiveness to market demands. They were able to meet the evolving needs of farmers and keep the 2+2 line relevant. 2: The popularity of the 2+2 was evident in its sales figures. In its first year of production, nearly 3,000 model 3388 and 3588s were sold, representing over a quarter of 4WD sales in 1980.

Victim of the Times

IH had big plans for the 2+2 in the mid-1980s, with two additional models in development. However, the company's economic problems, including aging factories, mounting employee benefit costs, and management missteps, led to a financial meltdown. A devastating labor union strike in 1979 further exacerbated the situation. 1: The decline in 4WD sales from 1979 to 1983 was a sign of the changing times. Management seemed oblivious to this, continuing to increase production and grow inventory. 2: In 1984, Tenneco bought out IH's ag division and merged it with Case. As a result, the 2+2 line was eliminated, and the design was shelved forever. Case IH developed the Magnum line with front-wheel-drive instead.