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Limited Slip Differential (LSD) NXG (NeXt Generation). Porsche 914 ❭ 3J914
- Porsche 914 (1970-1976)

Applications: Porsche 914/Early 915
Ramps Angles: 40/40 70/70 40/60 20/80
50/50 45/50 80/20 50/45
15/60 60/40 60/15
Pre-load (lbs/ft): 0-150
Side Gear: Coarse Spline 18T, Fine Spline 43T
The latest NXG LSD is designed and manufactured to be the strongest, most progressive and versatile LSD unit in the marketplace today.
The 3J plate pack always run with 8 active surfaces, even in our lighter settings, giving maximum surfaces and surface area contact during use. Our new pre-load spacer helps generate the pre-load. Rather than just have the 2 or 3 settings of other units, we can 'fine tune' to particular pre-load settings complemented with our choice of ramps, to get the perfect LSD set up for you. The Bevel and planet gear pack has been designed to be the smoothest mesh, biggest and strongest tooth profile that we have ever been involved with. Eliminating the rattle, and excessive back lash of other units. Also With the added benefit of dual ramps. Dual Ramps available are 30/90, 40/90, 30/60, 45/45, 50/90, plus more by request.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3J914
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
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Related, superseded, cross reference or alternative numbers for comparison.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
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

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.
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Cayman 2.7L 987C 2006-08

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.
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Sunday: Closed