International Harvester IH 656 664 666 & Hydrostatic 70 Tractor Chassis Shop Service Repair Manual. Manual is in good used Condition. Complete with no missing pages. The item “International Harvester IH 656 664 666 70 Tractor Chassis Service Repair Manual” is in sale since Wednesday, August 23, 2017. This item is in the category “Business & Industrial\Heavy Equipment Parts & Accs\Manuals & Books”. The seller is “manualbasket” and is located in Fairfield, Iowa. This item can be shipped worldwide.