Rear Differential

This 2mm spacer ring allows for a much easier setup when retrofitting some differentials and or crown wheel and pinions within the 915 family.

Note
Longer ring gear bolts may be required

Differential Carrier Bearing.



Fits:
Porsche 914/6 1970–1972 Sportomatic gearbox only
Porsche 911 F 1965–1973

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Diagram ref no 8

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99905900800

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Differential carrier bearing.



Fits:
Porsche 914/6 1970–1972 Sportomatic gearbox only
Porsche 911 F 1965–1973

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Diagram ref no 8

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99905900800

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Differential housing hex bolt. M 12 X 1.25.



Fits:
Porsche 911 1965-83
Porsche 930 Turbo 3.0L 1975-77
Porsche 914 1970-76

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Diagram ref no 10

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91533227604

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Differential housing hex bolt. M 12 X 1.25.



Fits:
Porsche 911 1965-83
Porsche 930 Turbo 3.0L 1975-77
Porsche 914 1970-76

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Diagram ref no 10

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91533227604

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Differential Housing Lock Plate.



Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85

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Diagram ref no 8.

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90133228501

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Differential Housing Lock Plate.



Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Porsche 924 1976-85

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Diagram ref no 8.

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90133228501

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Differential outer bearing, Left. 50 x 90 x 21.7



Fits:
Porsche 911 1987-89
Porsche 911 Turbo 1975-89
Porsche 968 1992-95
Porsche 964 C2 / C4 1989-94
Porsche 993 C2 1994-98
Porsche 986 Boxster S 2000-04
Porsche 996 C2 / C4 1998-05
Porsche 996 Turbo GT2 2001-05
Porsche 996 GT3 2000-05
Porsche 997.1 Turbo / GT2 / GT2 RS 2007-09
Porsche 997.2 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007-11

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Diagram ref no 11

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99905906400

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Differential outer bearing, Left. 50 x 90 x 21.7



Fits:
Porsche 911 1987-89
Porsche 911 Turbo 1975-89
Porsche 968 1992-95
Porsche 964 C2 / C4 1989-94
Porsche 993 C2 1994-98
Porsche 986 Boxster S 2000-04
Porsche 996 C2 / C4 1998-05
Porsche 996 Turbo GT2 2001-05
Porsche 996 GT3 2000-05
Porsche 997.1 Turbo / GT2 / GT2 RS 2007-09
Porsche 997.2 GT2 RS 2011
Porsche 997 GT3 / GT3 RS 2007-11

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Diagram ref no 11

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99905906400

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Differential output shaft seal. 48 x 68 x 10 mm.



Fits:
Porsche 911 Carrera 3.2L 1984-89
Porsche 911 Turbo 3.3 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 1998-05
Porsche 986 Boxster 3.2L 2000-04
Porsche 986 968CS 1993-95

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Diagram ref no 20

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99911334741

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Differential output shaft seal. 48 x 68 x 10 mm.



Fits:
Porsche 911 Carrera 3.2L 1984-89
Porsche 911 Turbo 3.3 1978-89
Porsche 964 1989-94
Porsche 993 1995-98
Porsche 996 1998-05
Porsche 986 Boxster 3.2L 2000-04
Porsche 986 968CS 1993-95

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Diagram ref no 20

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99911334741

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Differential washer.



Fits:
Porsche 911 Carrera 1984-89, with Gearbox G50.00/.01/.02/.50,  with limited differential
Porsche 964  C2 1989-94 with Gearbox G50.03/.04/.05,  with limited differential
Porsche 964 Carrera RS 1989-94 with Gearbox G5010,  with limited differential
Porsche 964 Turbo 1990-94 with Gearbox G5052,  with limited differential

Porsche 968 1992-95 with Manual gearbox G4400, with Locking differential 40 % (option code: M220)

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Diagram ref no 12

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92833255520

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Friction plate upgrade kit, limited slip differential (LSD)

Fits:

Porsche 911 - 1972 to 1986 with 915 Gearbox
Porsche 968 - 1992 to 1995 
For cars with Porsche LSD fitted - Option Code M220 (Locking differential 40 %)

Upgrade the standard Porsche LSD to these Track Day / Race inspired components for improved, performance traction.

RacingDiffs Performance LSD clutch plates fit OEM Porsche (ZF) LSD unit without any modifications:

The clutch discs are perforated for better cooling and great viscosity to resist the oil build-up in the holes between dog ear plates as it is well known that drilled brake discs improve cooling over solid discs. It is the same with the LSD clutch discs.

The highest quality thermally processed tool steel is used which differentiates our products from any others on the market.

During the final steps of production the clutch plates are coated with special Molybdenum-Ceramic compound which optimizes the best ratio of friction coefficient and durability. This drastically reduces material wear and warping under extreme conditions providing our clutch plates the best possible longevity.

We mastered knowledge in the field of friction materials and coatings, which is the cornerstone of the quality of our products.

All of our clutch plates are thoroughly tested and are currently being used in various racing cars throughout Europe and USA including track, hill climb and rally.

Please Note:
Friction plate upgrade kit should only be fitted by someone with the relevant knowledge and experience.

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92833255100

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Automatic Torque Biasing Differential enables your car to accelerate quicker and corner faster.



Fits:
Porsche 911 901 GEARBOX

For Technical Specifications Click Here

Quaife ATB Helical LSD differential for Porsche 911 1969-74 is suitable for Porsche 911 models in model year 1969-74 only. A direct replacement for the standard Porsche differential, the Quaife ATB Helical LSD differential transforms your car’s performance.

Unlike a conventional plate-style limited slip differential, the Porsche 911 1969-74 Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation.

The Porsche 911 1969-74 Quaife ATB Helical LSD differential never locks harshly with a set pre-load of wheel slip across the driven axle, like a conventional LSD. Rather, the Porsche 911 1969-74 Quaife ATB Helical LSD differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks.

The Porsche 911 1969-74 Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheelspin, eliminating torque steer and snatching in front wheel drive cars compared to conventional LSD units, and a maintenance-free design which retains the standard oil lubrication.

The Porsche 911 1969-74 Quaife ATB Helical LSD differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards.

Automatic Torque Biasing Differential enables your car to accelerate quicker and corner faster.



Fits:
Porsche 911 G50 GEARBOX
Porsche 964
Porsche 993
Porsche 996
Porsche 968

For Technical Specifications Click Here

Quaife ATB Helical LSD differential for Porsche G50 is suitable for Porsche models with G50 gearbox. A direct replacement for the standard Porsche differential, the Quaife ATB Helical LSD differential transforms your car's performance.
Unlike a conventional plate-style limited slip differential, the Porsche G50 Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation.
The Porsche G50 Quaife ATB Helical LSD differential never locks harshly with a set pre-load of wheel slip across the driven axle, like a conventional LSD. Rather, the Porsche G50 Quaife ATB Helical LSD differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks.
The Porsche G50 Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheelspin, eliminating torque steer and snatching in front wheel drive cars compared to conventional LSD units, and a maintenance-free design which retains the standard oil lubrication.
The Porsche G50 Quaife ATB Helical LSD differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards.