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Restore the correct drivetrain interface on your classic Porsche 911 with this genuine OEM drive flange. Designed for the early 911 series and featuring chilled-casting construction, this joint-flange connects the transmission/differential output to the driveshaft or axle stub, ensuring proper fitment, alignment and torque transfer.
Sold Each.
x2 Required Per Car.
NOTE: LAST 1 IN STOCK
Fits:
- Porsche 911 1969 2.0L / 912 SWB (F)
- Porsche 911 1970 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram Ref No 12
What This Product Does:
- The drive/differential flange is a mechanical component that connects the output of the transmission or differential to the driveshaft or stub axle. It provides a rigid mounting interface for torque transfer from the gearbox/diff to the driveshaft or axle.
- In vehicles with rear-mounted engines (such as early 911s), the correct flange is critical for aligning rotational components, maintaining correct driveshaft geometry, sealing, and ensuring correct load distribution in the drivetrain.
- A good flange ensures the driveshaft is properly secured and aligned; if the flange is worn, damaged or the wrong part, then driveline vibration, misalignment, drive-loss or leak issues may occur.
Symptoms & Signs You Might Need Replacement:
- Driveline vibration or shudder at higher speeds or under load – a worn, damaged or mis-matched flange may cause flex or misalignment.
- Noise or play at the transmission/differential output – e.g., you hear knocking, clunking or see movement at the flange coupling.
- Oil leak at the flange mating surface – if the flange’s sealing face is worn or the mating surround is compromised, fluid may leak from the gearbox/differential.
- Reduces risk of vibration, misalignment or failure: A flange that is worn, improperly sized or mismatched can lead to drivetrain or transmission stresses, early bearing wear, or even catastrophic driveshaft failure.
- Sealing & durability: Proper flange helps maintain gearbox/differential sealing and ensures reliable connection under torsional load.
- Installation efficiency: When replacing major drivetrain components, installing the correct flange reduces risk of repeat service and ensures correct torque path from engine to wheels.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133220915
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Shop Securely
12 Month Warranty
Worldwide Delivery
Sold each.
Fits:
Porsche 911 / 912 1965-70
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133227511
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Shop Securely
12 Month Warranty
Worldwide Delivery
Sold each.
Fits:
Porsche 911/912 1965-69
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133227502
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 911 / S / L >>1968
Porsche 912 >>1967
Click 'Zoom in' for large parts diagram.
Diagram ref no 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133223902
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Shop Securely
12 Month Warranty
Worldwide Delivery
Sold each - 2 required per car
Fits:
Porsche 911 2.0ltr - 1965 to 1967
Click 'Zoom in' for large parts diagram.
Diagram ref no 16
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90133226101
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Driveshaft Flanges - Essential Gearbox Connection Components
Porsche driveshaft flanges are critical drivetrain components that connect the driveshafts to the gearbox or differential, allowing engine power to be transferred smoothly to the wheels. Precision-engineered for strength and alignment, these flanges play a vital role in maintaining drivetrain stability, torque delivery, and long-term gearbox reliability.
Available from Design911, Porsche driveshaft flanges are supplied to meet OEM specifications, making them ideal for maintenance, repairs, and performance rebuilds where drivetrain integrity is essential.
What Does a Porsche Driveshaft Flange Do?
The driveshaft flange acts as the mechanical interface between the gearbox output and the driveshaft.
Core Functions:
- Transfers engine torque from the gearbox to the driveshaft
- Maintains precise alignment within the drivetrain
- Supports smooth power delivery under acceleration and load
- Absorbs rotational forces during gear changes
- Ensures reliable connection between drivetrain components
Without a correctly functioning driveshaft flange, drivetrain vibration and component wear rapidly increase.
Why Do Driveshaft Flanges Fail?
Driveshaft flanges operate under constant rotational load and are subject to wear over time.
Common Causes of Failure:
- Metal fatigue from high mileage or aggressive driving
- Worn splines due to poor lubrication or age
- Corrosion from moisture ingress
- Excessive drivetrain vibration or misalignment
- Increased torque loads from performance upgrades
Failure can lead to knocking noises, vibration under acceleration, oil leaks, or complete drivetrain disengagement.
When Should a Driveshaft Flange Be Replaced?
A Porsche driveshaft flange should be
inspected and replaced if any of the following symptoms occur:
- Visible wear or damage to splines
- Excessive play or looseness in the drivetrain
- Oil leakage from the gearbox flange seal
- Clunking or vibration during acceleration
- During gearbox rebuilds or clutch replacements
Preventative replacement during gearbox servicing can help avoid costly drivetrain damage.
Highlights
- Essential Porsche gearbox-to-driveshaft connection component
- Maintains drivetrain alignment and torque transfer
- Manufactured to OEM specifications
- Ideal for maintenance, repairs, and rebuilds
- Helps eliminate vibration and premature drivetrain wear
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Saturday: Closed
Sunday: Closed