In spring 2005 the Dyna-6 was introduced as the successor to the Dynashift transmission. It featured six shuttle-changes and four main gears, all selected electronically with a small lever—no clutch required. The shuttle-changes could boost speed by a factor of 2.4, so the main gears were needed mainly for road work. You could operate the shuttle shifts either in the traditional way from the left-hand stalk or from the main gear lever. The transmission automation settings were adjusted with a large control dial. The old Dynashift transmission remained on sale in some countries for another year.

At the same time, a GTA control console with a color display became available as an option. It controlled, among other things, headland automation and the hydraulics-control automation for towed implements. On tractors equipped with GTA, the tractor’s settings (for example, direction-change sensitivity and the electric hydraulic-valve settings) were made from the console rather than the dashboard display. Air conditioning was now standard equipment in Finland. The standard hydraulics system was fitted with a 100 l/min pump. Models 6445 and 6455 were still offered in the sloping-nose version. A new option was the Panoramic contractor version, in which the entire right-hand side was glazed and the door was omitted.

Compared with earlier model years, the six-cylinder models offered more power and torque when using the boost feature.

This is an automated translation. Please report any issues in the translation.