Rear Differential

Wavetrac® Differential.



FITS:
Porsche 996 C2 1998-2005 6-Speed Manual
(Excl 996 C4, 996 Turbo)
Porsche 986 Boxster S 3.2L 6-Speed Manual

◾ Innovative:
Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design.

◾ Superior Materials:
9310 steel gears run in case-hardened billet or forged steel bodies. ARP® fasteners used throughout.

◾ Maintenance Free:
As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.

◾ Customizable:
If desired, you can alter the diff's behavior to suit your needs using optional components.

◾ Limited LIFETIME Warranty:
All Wavetrac® differentials include a transferable, Limited Lifetime Warranty.

For More information Click Here

Please note: This is a special order part and usually takes between 2-6 weeks to come into stock.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

40309165WK

The product you are viewing cross references to these numbers

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



Fits:
Porsche Boxster 2.5L 5 SPEED

For Technical Specifications Click Here
Quaife ATB Helical LSD differential for Porsche Boxter is suitable for Porsche Boxter models with 2.5 litre engine, model years 1996-98 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 Boxter 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 Boxter 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 Boxter 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 Boxter 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 Boxter 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 996 3.6L / 3.4L C2/C4/C4S
Porsche Boxster 986 3.2L S 6 SPEED
Porsche Boxster 987 3.2L S 6 SPEED

For Technical Specifications Click Here

The Differential powers both drive wheels under nearly all conditions. With an ordinary open differential (standard on most cars), precious power is wasted during wheel spin under acceleration. This happens because the open differential shifts power to the wheel with less grip, along the path of least resistance. The Differential, however, does just the opposite. It senses which wheel has better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.

Differential 20-80%
Manual cars only

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



Fits:
Porsche Cayman & S, Boxter 986/987 (Tiptronic)

For Technical Specifications Click Here

Quaife ATB Helical LSD differential is for a variety of models including Porsche Cayman & S, Boxter 986/987 (Tiptronic). A direct replacement for the standard open differential, the Quaife ATB Helical LSD differential transforms your car's performance. Unlike a conventional plate-style limited slip differential, the Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation. The 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 Quaife ATB differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks. The Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheel spin, 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 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. With over 250 applications - the Quaife ATB Helical LSD differential is the best option to utilise your cars performance. Quaife ATB Helical LSD differentials are used by Ford, General Motors and Daimler-Chrysler as original equipment. The Quaife ATB Helical LSD differential is also now subject to a lifetime warranty (subject to terms and conditions). This product is available direct from QUAIFE; please confirm your application using the attached technical drawing.

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



Fits:
Porsche Cayman S 987C
Porsche Boxster S 987 3.4L

For Technical Specifications Click Here

Quaife ATB Helical LSD differential for Porsche Cayman S is suitable for Porsche Cayman S models, to replace the standard open differential. 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 Cayman S 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 Cayman S 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 Cayman S 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 Cayman S 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 Cayman S 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 Boxster 986 and Cayman 987 2.7L models using the 5-speed Audi 01X gearbox

For Technical Specifications Click Here

Quaife ATB Helical LSD differential suitable for various Porsche models, including Boxster 986 and Cayman 987 2.7L models using the 5-speed Audi 01X gearbox.

A direct replacement for the standard Porsche differential, the Quaife ATB differential transforms your car's performance.

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

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

The ATB 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 Quaife ATB 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.

With over 370 applications, the Quaife ATB Helical differential is second to none. Accept no imitations!

Quaife ATB differentials are used by Ford, General Motors and Daimler-Chrysler as original equipment.

The ATB differential for is also now subject to a lifetime warranty (subject to terms and conditions).

Please confirm your application using the attached techncial drawing.

Wavetrac® Differential.



FITS:
Porsche 981 Cayman S (3.4L) 6-Speed Manual 2014>>
Porsche 981 Boxster S (3.4L) 6-Speed Manual 2014>>

• Innovative:
Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design.

• Superior Materials:
9310 steel gears run in case-hardened billet or forged steel bodies. ARP® fasteners used throughout.

• Maintenance Free:
As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.

• Customizable:
If desired, you can alter the diff's behavior to suit your needs using optional components.

• Limited LIFETIME Warranty:
All Wavetrac® differentials include a transferable, Limited Lifetime Warranty.

For More information Click Here

Please note: This is a special order part and usually takes between 2-6 weeks to come into stock.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

40309176WK

The product you are viewing cross references to these numbers

Wavetrac® Differential.



FITS:
Porsche 987 Cayman S 6-Speed Manual
Porsche 987 Boxster S 6-Speed Manual

• Innovative:
Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design.

• Superior Materials:
9310 steel gears run in case-hardened billet or forged steel bodies. ARP® fasteners used throughout.

• Maintenance Free:
As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.

• Customizable:
If desired, you can alter the diff's behavior to suit your needs using optional components.

• Limited LIFETIME Warranty:
All Wavetrac® differentials include a transferable, Limited Lifetime Warranty.

For More information Click Here

Please note: This is a special order part and usually takes between 2-6 weeks to come into stock.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

40309175WK

The product you are viewing cross references to these numbers

Wavetrac® Differential.



FITS:
Porsche 987 Cayman S 3.4L PDK
Porsche 987 Boxster S 3.4L PDK
Porsche 981 Cayman S 3.4L PDK
Porsche 981 Boxster S 3.4L PDK
Porsche 997.2 PDK with Open Differential
Porsche 991/991.2 PDK with Open Differential
Porsche 718 (G91) PDK with Open Differential

◾ Innovative:
Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design.

◾ Superior Materials:
9310 steel gears run in case-hardened billet or forged steel bodies. ARP® fasteners used throughout.

◾ Maintenance Free:
As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.

◾ Customizable:
If desired, you can alter the diff's behavior to suit your needs using optional components.

◾ Limited LIFETIME Warranty:
All Wavetrac® differentials include a transferable, Limited Lifetime Warranty.

For More information Click Here

Please note: This is a special order part and usually takes between 2-6 weeks to come into stock.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

40309187WK

The product you are viewing cross references to these numbers

Pin, 5x16, for fixing the bolt of the pinion gears in the differential.



Fits:
Porsche 986 Boxster 1997 - 2004
Porsche 996 Carrera 1998 - 2005

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90030903801

The product you are viewing cross references to these numbers

Oil seal for the short differential output shaft, located on the side of the gearbox with the differential cover. 

Outer Diameter: 90mm. 

Fits:
Vehicles With Tiptronic Transmission (PR 249)
Porsche 986 Boxster 1997-04

Porsche 987-1 Boxster 2005-08 
Porsche 987-1 Cayman 2006-08

Diagram ref. 3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98639702700

The product you are viewing cross references to these numbers

Oil Seal For The Long Differential Output Shaft Flange, Located On The Side Of The Gearbox Without The Differential Cover Plate. 

Outer Diameter: 54mm. 

Fits:
Vehicles With Tiptronic Transmission (PR 249)
Porsche 986 Boxster 1997>>2004

Porsche 987.1 Boxster MKI 2005>>2008
Porsche 987.1 Cayman 2006>>2008

Porsche 996 Carrera 3.4L 1998>>2001

Diagram Ref No 3

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99639701500

The product you are viewing cross references to these numbers

Replacement shim for pinion / lay shaft - gearbox to differential.



Fits:
Porsche 986 Boxster / S 1999-04*
Porsche 996 Carrera 1998-05*

*Only for models with the six-speed manual transmission.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

996302122

The product you are viewing cross references to these numbers