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Porsche > Cayman 987C/981C (2005-2016) > Gearbox / Transmission >

Rear Differential

Rear Differential

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Limited Slip Differential (LSD) for Porsche 987 Boxster S / 987 Cayman S - 40.309.187WK, 40309187WK
1
Limited Slip Differential (LSD) for Porsche 987 Boxster S / 987 Cayman S
Best Price
40309187WK
Product Information
Product Information
Wavetrac® Differential.

wavetrac

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Related, superseded, cross reference or alternative numbers for comparison.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
40.309.187WK
40309187WK

The product you are viewing cross references to these numbers
Seal for Differential Output Shaft - Cover Side - for Porsche 986 / 987-1 Boxster & Cayman (Tiptronic Gearbox) - 98639702700
4
Seal for Differential Output Shaft - Cover Side - for Porsche 986 / 987-1 Boxster & Cayman (Tiptronic Gearbox)
Special Order item
98639702700
Product Information
Product Information

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Related, superseded, cross reference or alternative numbers for comparison.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
98639702700

The product you are viewing cross references to these numbers
Seal For Differential Output Shaft Flange For Porsche 986/987-1 Boxster & Cayman / 996-1 Carrera 3.4L (Tiptronic Gearbox) - 99639701500
3
Seal For Differential Output Shaft Flange For Porsche 986/987-1 Boxster & Cayman / 996-1 Carrera 3.4L (Tiptronic Gearbox)
Special Order item
99639701500
Product Information
Product Information
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
99639701500

The product you are viewing cross references to these numbers
DISPLAYING 17 to 19 (of 19 products)
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About Rear Differential

Benefits of a limited-slip differential

The main advantage of a limited-slip differential is demonstrated by considering the case of a standard (or "open") differential in off-roading situations where one wheel has no contact with the ground. In such a case (with a standard differential), the non-contacting wheel will receive 100% of the power, while the contacting wheel will remain stationary. The torque transmitted will be equal at both wheels, and therefore, will not exceed the threshold of torque needed to move the wheel with traction. In this situation, a limited-slip differential prevents 100% of the power from being allocated to one wheel, and thereby keeping both wheels in powered rotation.

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