LSD Clutch Set for Porsche 911 1972 - 1986

RacingDiffs 188mm Limited Slip Differential (LSD) Upgrade for BMW: Elevate Your Driving Experience

Do you own a BMW E30, E36, E28, E34, E32, Z1, or Z3 model? Restore and enhance the performance of your limited slip differential with RacingDiffs upgrade kits, designed specifically for the 188mm LSD.

The BMW medium case (188mm) LSD was found in most 6-cylinder models until 1999, such as:

3 Series: E30, E36

5 Series: E28, E34

7 Series: E24, E32

Z Series: Z1, Z3

Important notes:

* If you purchase kits that include the machined steel cover, remember to indicate your differential's gear ratio. There are two types of covers depending on the gear ratio (2.64-3.07 and 3.15-4.45), so you must tell us which one you want us to send you.

By replacing the existing clutches with new ones, you will rejuvenate your differential and restore its original performance. For improved performance and increased intensity in daily use, both on the road and on the track, we recommend Stage 1 and 2 packages. For maximum performance, check out Stage 3 and 4 packages. Additionally, we offer a LIFETIME WARRANTY on these kits!

Choose Your Performance Level

Service Pack: Ideal for daily driving, includes a set of 2 clutches that will restore your differential to factory settings.

Set of 2 clutches

Road Pack (Stage 1): Ideal for sporty road driving, this kit includes a set of 3 clutches, a set of preload shims, and a ramp saver shim for smoother locking.

Set of 3 clutches

Set of preload shims
Rampsaver shim

Track Pack (Stage 2): Taking your car to the track? Get the set of 4 clutches, machined steel cover, set of preload shims, and Rampsaver shim for maximum grip and traction.

Set of 4 clutches
Machined steel cover
Rampsaver shim
Set of preload shims

Race Pack (Stage 3): Designed for competition, includes a set of 6 clutches, a machined steel cover, preload shims and oil, and a Rampsaver shim for unparalleled performance.

Set of 6 clutches
Machined steel cover
Rampsaver shim
Set of preload shims
Set of oil shims

Ultimate Performance Pack (Stage 4): For those who demand the best, this ultimate kit includes a set of 6 clutches, a machined steel cover, a set of preload shims, a set of oil shims, and a set of multi-variable ramps for highly customizable performance.

Set of 6 clutches
Forged steel cover
Set of preload shims
Set of oil shims
Set of multi-variable ramps

Installation and Support

Each of our kits is Plug & Play and requires no modifications. For easy installation, visit our YouTube channel with step-by-step tutorials.

To completely rebuild your differential, you will also need a set of bearings and oil seals.
OEM part numbers:

3314121062633-14-12-10-62633 14 12 10 62633.14.12.10.6263314120379733-14-12-03-79733 14 12 03 79733.14.12.03.7973314120379533-14-12-03-79533 14 12 03 79533.14.12.03.7953314120379433-14-12-03-79433 14 12 03 79433.14.12.03.7943314120690933-14-12-06-90933 14 12 06 90933.14.12.06.9093314120436733-14-12-04-36733 14 12 04 36733.14.12.04.3673314120691933-14-12-06-91933 14 12 06 91933.14.12.06.919