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Rear Differential

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DISPLAYING 17 to 32 (of 44 products)
1 2 3
Special Offer
40309120WK
Product Information
Product Information
Wavetrac® Differential.
wavetrac

FITS:
Porsche 901 1965-68

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Related, superseded, cross reference or alternative numbers for comparison.

40309120WK
40.309.120WK
40309120WK

The product you are viewing cross references to these numbers
40309160WK
Product Information
Product Information
Wavetrac® Differential.

wavetrac

FITS:
Porsche 911 1987-88 (G50 Gearbox)
Porsche 930 Turbo 5-Speed 1989>>
Porsche 964 Carrera
Porsche 993 Carrera
Porsche 968
Porsche 996 GT2 Rear diff
Porsche 996 GT3 Rear diff
Porsche 996 TURBO 6-Speed Manual Rear diff

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Related, superseded, cross reference or alternative numbers for comparison.

40309160WK
40.309.160WK
40309160WK

The product you are viewing cross references to these numbers
40309130WK
Product Information
Product Information
Wavetrac® Differential

wavetrac

FITS:
Gearbox type 901:
Porsche 911 1969-74
Porsche 914 1969-74

• 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.

40309130WK
40.309.130WK
40309130WK

The product you are viewing cross references to these numbers
40309140WK
Product Information
Product Information
Wavetrac® Differential.

wavetrac

FITS:
Gearbox type 915-18:
Porsche 911 1974-77
Porsche Turbo 930 1974-77

• 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.
The flange of the diff is thicker by 4mm and standard bolts are not suitable. New longer bolts need to be sourced separately as they don't come with the differential.

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Related, superseded, cross reference or alternative numbers for comparison.

40309140WK
40.309.140WK
40309140WK

The product you are viewing cross references to these numbers
40309150WK
Product Information
Product Information
Wavetrac® Differential.

wavetrac

FITS:
Gearbox Type 915-43:
Porsche 911 1978-86
Porsche Turbo 930 1978-88

• 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.

40309150WK
40.309.150WK
40309150WK

The product you are viewing cross references to these numbers
QDF1Q/18
Product Information
Product Information
Automatic Torque Biasing Differential enables your car to accelerate quicker and corner faster.

quaife

Fits:
Porsche 911 915 18 TEETH GEARBOX

For Technical Specifications Click Here

Quaife ATB Helical LSD differential for Porsche 911 18T is suitable for Porsche 911 models with 915 transmission and course spline 18 teeth. 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 18T 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 18T 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 18T 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 18T 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 18T 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.
Special Offer
QDF1Q/43
Product Information
Product Information
Automatic Torque Biasing Differential enables your car to accelerate quicker and corner faster.

quaife

Fits:
Porsche 911 915 43 TEETH GEARBOX

For Technical Specifications Click Here

Quaife ATB Helical LSD differential for Porsche 911 18T is suitable for Porsche 911 models with 915 transmission and course spline 43 teeth. 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 43T 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 43T 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 43T 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 43T 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 43T 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.
3J901
Product Information
Product Information
3J Driveline Limited Slip Differential (LSD) NXG (NeXt Generation).

jdriveline

Applications: Porsche 901

Type: Porsche 901
Ramps Angles: 45/45 40/90 30/90 50/90
30/60 35/35 20/75 30/30
35/45 40/60 20/80
Pre-load (lbs/ft): 0-150

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.

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3J901
3J0751
3J0750
90433205300

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Special Order item
90133223902
Product Information
Product Information
Limited slip differential cap.

porsche

Fits:
Porsche 911 / S / L >>1968
Porsche 912 >>1967

Click 'Zoom in' for large parts diagram.
Diagram ref no 17



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90133223902
90133223902

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91531804504
Product Information
Product Information
Magnet carrier disc.

porsche

Fits:
Porsche 911 G (1974 - 1983) *** up to 1978 for vehicles with Sportomatic, from 1978 for vehicles with manual transmission type 915

Porsche 911 Turbo (1975 - 1988)
Porsche 911 Carrera (1984 - 1986)

Click 'Zoom in' for large parts diagram.
Diagram ref no 18

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

91531804504
91531804504
91531804503

The product you are viewing cross references to these numbers
92833251100/1
Product Information
Product Information
Multi variation ramp set for LSD (limited slip differential)


Fits:
Porsche 911 Carrera - 1972 to 1989
Porsche 944 Early models - 1982 to 1991
Porsche 968 - 1991 to 1995
Only for cars with Option Code - 
M220 (Locking differential 40 %)

Optimise Your Porsche LSD with RacingDiffs
Multi-variant Ramp Set

The RacingDiffs LSD Multi-variant Ramp set provides three different ramp angle positions to enhance the performance of your Porsche's limited slip differential. This ultimate upgrade fits various Porsche models, ensuring superior traction and handling for all types of racing.

Ramp Angle Positions:

  • 30°/30°
  • 30°/60°
  • 50°/65°

What is LDS ramp angle?
Ramp angles primarily determine the behaviour of the LSD under acceleration and braking. They are often referred to as 1 way, 1.5 way, and 2 way, these terms refer to when the differential locks. 

Key Features:

Superior Material and Construction:
Made from forged material for maximum strength and durability.
High-precision CNC finish ensures a perfect Plug & Play installation.
Chemically heat-treated for high durability and wear resistance.

Enhanced Performance:
Allows adjustment of your differential from 25% up to 100% lock in 2 ways or 1.5 ways.
By altering the ramp angle setup, you control how fast and effectively the differential locks.

Versatile and Customisable:
No need for multiple differentials; this set can be adjusted according to your track requirements, guaranteeing success in various racing disciplines.

Why Choose RacingDiffs Multi-variant Ramp Set?
Adjustable Lock: Customize your differential's locking capabilities for different racing conditions.
Durability: Constructed from high-quality materials for exceptional longevity.
Easy Installation: Direct replacement with no modifications required.
Optimal Performance: Provides superior handling and traction, crucial for racing.

Recommended Companion:
For the ultimate LSD performance upgrade, combine this ramp set with our Performance Clutch Set.

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






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

92833251100
92833251100

The product you are viewing cross references to these numbers
Special Order item
90133226501
Product Information
Product Information
Spacer ring for distance adjustment in the transmission,
2.5 mm.

porsche

Fits:
Porsche 911 F (1965 - 1970)
Porsche 914/6 (1970 - 1972) Only for 914/6 with Sportomatic transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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90133226501
90133226501
901332265

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90133226502
Product Information
Product Information
Spacer ring for distance adjustment in the transmission,
2.6 mm.

porsche

Fits:
Porsche 911 F (1965 - 1970)
Porsche 914/6 (1970 - 1972) Only for 914/6 with Sportomatic transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

90133226502
90133226502
901332265

The product you are viewing cross references to these numbers
Special Order item
90133226503
Product Information
Product Information
Spacer ring for distance adjustment in the transmission,
2.7 mm.

porsche

Fits:
Porsche 911 F (1965 - 1970)
Porsche 914/6 (1970 - 1972) Only for 914/6 with Sportomatic transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

90133226503
90133226503
901332265

The product you are viewing cross references to these numbers
Special Order item
90133226504
Product Information
Product Information
Spacer ring for distance adjustment in the transmission,
2.8 mm.

porsche

Fits:
Porsche 911 F (1965 - 1970)
Porsche 914/6 (1970 - 1972) Only for 914/6 with Sportomatic transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

90133226504
90133226504
901332265

The product you are viewing cross references to these numbers
Special Order item
90133226505
Product Information
Product Information
Spacer ring for distance adjustment in the transmission,
2.9 mm.

porsche

Fits:
Porsche 911 F (1965 - 1970)
Porsche 914/6 (1970 - 1972) Only for 914/6 with Sportomatic transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

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

90133226505
90133226505
901332265

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DISPLAYING 17 to 32 (of 44 products)
1 2 3
Also found on these pages
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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