Seamless delivery: New Ford 6F-55 transmission built specifically for new EcoBoost™ engine

5/2009 for more information, go to WWW.media.ford.com

The final drive ratios of 2.77:1 in the Lincoln MKS and 3.16:1 in the Lincoln MKT were chosen for optimum performance and fuel economy and confidently deliver improved responsiveness.

The new low-viscosity oil has improved frictional properties that reduce parasitic losses. This leads to a more efficient overall transmission system that delivers improved fuel economy for the customer.

The 6F-55’s torque converter improves drivability with a more-connected feel that seamlessly delivers power to the All-Wheel Drive system. An additional lug welded on the torque converter cover, which mates to the more-powerful EcoBoost engine, was added for durability.

The clutches on the 6F-55 transmission feature high-energy friction materials that can handle higher loads and shift energies over the long term, so customers will experience smoother shifts. The ring gear on the 6F-55 is increased to 41.5 mm compared with 31.5 mm on the 6F-50 to handle the increased torque of the EcoBoost Engine.

Ford’s new 6F-55 transmission is based on the highly successful 6F-50 transmission. Although similar in appearance, the 6F-55 transmission was upgraded throughout to handle the higher torque demands of the all-new twin-turbocharged, direct-injection

3.5-liter V-6 EcoBoost™ engine, which will be available on the 2010 Lincoln MKS sedan and 2010 Lincoln MKT crossover.

Customer-focused improvements complement the V-6 EcoBoost experience, which delivers the horsepower of a normally aspirated V-8 engine with the fuel economy of a conventional V-6 engine.

6F-55 improvements found throughout

Improved final drive ratios: wider, thicker transfer and final drive gears

New low-viscosity oil

Optimized torque converter

Upgraded clutches