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What transmission was in the original GT40?


The Ford GT40, an iconic race car that dominated the 24 Hours of Le Mans in the 1960s, is a marvel of engineering and design. One of the key components that contributed to its success was its transmission. In this article, we’ll explore the transmission used in the original GT40 and why it was so significant in the car's performance and legacy.


The ZF 5-Speed Manual Transmission


The original Ford GT40 was equipped with a ZF (Zahnradfabrik Friedrichshafen) 5-speed manual transmission. This German-made gearbox was chosen for its durability and ability to handle the immense power produced by the GT40's V8 engines. The ZF transmission was a transaxle design, meaning it combined the gearbox and differential into a single unit, which was mounted at the rear of the car. This design was crucial for the GT40's mid-engine layout, ensuring optimal weight distribution and handling.


Why the ZF Transmission Was a Game-Changer


The ZF transmission played a pivotal role in the GT40's success on the racetrack. Here are some reasons why it was a game-changer:



  • High Torque Capacity: The ZF transmission was capable of handling the high torque output of the GT40's engines, including the 7.0-liter V8 used in later models.

  • Precision Engineering: The gearbox offered smooth and precise gear changes, which were critical during high-speed racing conditions.

  • Compact Design: Its transaxle configuration allowed for a compact and efficient design, perfectly suited for the GT40's mid-engine layout.

  • Reliability: The ZF transmission was known for its reliability, a crucial factor in endurance racing where mechanical failures could mean the difference between victory and defeat.


Legacy of the GT40's Transmission


The ZF 5-speed manual transmission became a hallmark of the GT40's engineering excellence. Its performance on the track helped the GT40 secure four consecutive wins at the 24 Hours of Le Mans from 1966 to 1969, cementing its place in motorsport history. Even today, the ZF transmission is celebrated as a key component of one of the greatest race cars ever built.


At Kevin's Autos, we appreciate the importance of every component in a vehicle, from the transmission to the engine. Whether you're driving a classic car or a modern vehicle, maintaining your transmission is essential for optimal performance. If you have any questions about your car's transmission or need expert service, don’t hesitate to reach out to us!


Frequently Asked Questions

How many gears did the 1966 GT40 have?


four speed
Interestingly, the Mark IIs only used four speed manual transmissions, as the bigger engine put out so much torque that a five-speed gear box was considered unnecessary. The photo finish of three GT Mark IIs at the 1966 Le Mans race.



What transmission does the Ford GT use?


The engine is paired to a Getrag 7DCL750 7-speed dual-clutch transmission.



How much is an original GT40 worth today?


The value of a 1966 Ford GT40 Mk I can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $5,050,000 for a 1966 Ford GT40 Mk I in good condition with average spec.



Why did Nascar ban Fords 427?


The ban was a significant blow to Ford. Especially after they had invested. So much time and money into developing the engine with hopes of competing against Chrysler's Hemi and NASCAR.



What Ford GT is known as the Badd GT?


In 2010, the BADD GT was the first streetcar to break 250 mph in the standing mile. From there, Bohmer, BADD GT and his team would go on to achieve a Guinness World Record in 2012 for the Fastest Standing Mile in a Streetcar at 282.232 MPH, a record that remains unbroken to this day.



How much horsepower did the original GT40 have?


The engine installed on this car was a naturally aspirated Windsor 302 cu in (4.9 L) V8 with a compression ratio of 10.6:1; fuel fed by four 2-barrel 48 IDA Weber carburettors, rated at 317 kW (425 hp; 431 PS) at 6,000 rpm and a maximum torque of 395 lb⋅ft (536 N⋅m) at 4,750 rpm.



Did the GT40 have a 427?


With only four weeks until the race, the team decided prepare two of the cars with the 427 engine (called the GT40X) and to supplement the team with the existing GTs with the existing 289 engines that were already racing in Europe.



What transmission did the GT40 have?


Ford GT40
Engine255 CID (4181 cc) V-8 289 CID (4737 cc) V-8 302 CID (4942 cc) V-8 427 CID (6997 cc) V-8
TransmissionMk1 & Mk3: 5-speed manual Mk2 & Mk4: 4-speed manual
Dimensions
Wheelbase95 in (2,413 mm)



What is the rarest GT40?


One of the rarest of its kind. This 1966 GT40 MkI, P/1034, is one of only 31 ever produced and claimed a top spot at #MecumKissimmee! As the very first 'production road car' delivered to a private owner, it represents a significant chapter in automotive history.



Why was the GT40 shifter on the right?


So, even though it was a 2 seat car, the shifter was on the right, just like the Ford GT40 - this also creates other benefits as the mass of the driver (and passenger if there is one) are closer to the centre of mass and also they can be more squeezed together benefiting aerodynamics.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.