May/June 2021 Antique Power
/NEW ISSUE: The May/June 2021 issue of Antique Power magazine is available in our gift shop and will be available in subscriber mailboxes and on newsstands soon. Our latest cover tractor is Stewart Paquette’s 1981 International Harvester Model 3588 2+2. This feature is written by Rick Mannen and photos by Mark Dalton.
Once the 100-horsepower barrier had been breached, tractor builders quickly moved up the power scale. In the early 1970s, the International Harvester Co. had a line of heavy rear-wheel-drive tractors in the 66-series. The largest, the Model 1566, produced over 140 drawbar horsepower. This series was updated in 1976 to the 86-series tractors.
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