The .80 overdrive gears were the weak link.

The 5-speed was optional from about 1966 until 1973 and could have either a direct or an overdrive fifth gear.

It includes one overdrive gear and a light-weight aluminum housing.

This explains the usefulness of very high "overdrive" gears for highway cruising.

It includes one overdrive gear, a light-weight aluminum housing, and is adaptable for four wheel drive use.

Thanks to the overdrive fifth gear, a fuel economy of 9,3 litres per 100 km was possible.

Ford's new 6-speed 6R75 automatic transmission with dual overdrive gears was introduced.

This also shifted the overdrive 5th gear higher by the same amount creating a wider and taller overdrive ratio.

A number of functions were computer controlled, such as the overdrive gear for its four-speed manual gearbox.

Six are too few, because a low first gear and a tall, smooth-cruising overdrive gear leave only four remaining gears.