fits model: 911. make: Porsche. year: 1966–1969.

( Manufacturer Part Number: 901/02 ), ( Part Type: Transmission )
The 1966-1969 Porsche 901-02 911 transmission, specifically the 7.31 ratio, is a testament to the engineering excellence that characterizes the iconic Porsche brand. This transmission, a key component of the legendary 911 model, is a 5-speed manual unit that delivers smooth, precise shifts and reliable performance.
The 7.31 ratio is a gear ratio that provides a balance between acceleration and fuel efficiency. With this ratio, the engine turns less than half as fast as the drive wheels for each revolution, which means the car can accelerate quickly without requiring excessive engine revs or fuel consumption. The 7.31 ratio is particularly well-suited to the 911's powerful flat-six engine, allowing it to deliver thrilling performance without compromising on fuel efficiency or drivability.
The transmission itself is a work of art, with its robust construction and meticulous engineering. The gearbox is made from high-strength materials, including cast iron for the main housing and aluminum for the transmission case, ensuring durability and longevity. The gears are precision-machined to exacting tolerances, ensuring smooth, quiet operation and long-term reliability.
The 1966-1969 Porsche 901-02 911 transmission also features a synchromesh system, which allows for easy, smooth gear changes. This system uses a set of conical teeth that mesh with the gear teeth as the shift lever is moved, reducing the amount of force required to change gears and ensuring a smooth, seamless transition between speeds.
In summary, the 1966-1969 Porsche 901-02 911 transmission, with its 7.31 ratio, is a masterclass in engineering and performance. Its robust construction, precision engineering, and smooth shifting make it a pleasure to drive, and its balance of acceleration and fuel efficiency ensures that it remains a favorite among Porsche enthusiasts to this day.
Pros of buying a 1966-1969 Porsche 901-02 911 transmission 7.31r:1. Rarity: This type of transmission is relatively rare, making the car and its parts more desirable among collectors and enthusiasts.
2. History: The 901-02 911 is a classic Porsche model, and owning a piece of its history can be exciting for car enthusiasts.
3. Performance: The 7.31r ratio provides a good balance between acceleration and fuel efficiency, making the car fun to drive while still being practical.
4. Durability: Porsche transmissions are known for their durability and reliability, which can make them a good investment for collectors and enthusiasts.
Cons of buying a 1966-1969 Porsche 901-02 911 transmission 7.31r:1. Availability: Due to its rarity, finding a replacement part or a mechanic who is familiar with the transmission can be difficult and expensive.
2. Maintenance: Older transmissions may require more frequent maintenance and repairs, which can be costly.
3. Compatibility: The 7.31r transmission may not be compatible with all 911 models, which can limit the car's versatility and resale value.
Conclusion:The 1966-1969 Porsche 901-02 911 transmission 7.31r is a rare and desirable piece of automotive history. Its durability and performance make it a good investment for collectors and enthusiasts, but its rarity and maintenance requirements can also make it costly and difficult to maintain. Ultimately, whether or not to purchase this transmission depends on the individual's budget, expertise, and passion for classic Porsche cars.
Recommendation:If you are a serious collector or enthusiast with a deep appreciation for classic Porsche cars, and have the budget and expertise to maintain a rare transmission, then the 1966-1969 Porsche 901-02 911 transmission 7.31r may be a worthwhile investment. However, if you are looking for something more practical or cost-effective, there may be other transmission options that would better suit your needs.
This fits 5spd.
Can provide part numbers if needed.