RacingDiffs Limited Slip Differential swap kit (188mm ZF006 unit) - spacer 12.15mm for BMW E46

This RacingDiffs kit includes all parts required to install the ZF plated Limited Slip Differential (LSD) found in E30, E36, E34..
It is the most cost-efficient way to install a proper LSD unit into the E46 188K differential type which can be found in the following models:

-320Cd M47N
-320Ci M54
-320d M47
-320d M47N
-320i M54
-323Ci M52
-323i M52
-323i 2.4 M52
-320Cd M47N
-320Ci M54
-320d M47
-320d M47N
-320i M54
-323Ci M52
-323i M52
-323i 2.4 M52
-328i M52
-330Ci M54
-330i M54
-330xd M57
-330xd M57N
-330xi M54
 
We highly recommend to refresh the LSD unit prior to installing it into the E46 differential housing, as used units are 25+ years old and likely have factory-installed friction discs which are worn out.
If you upgrade LSD unit with some of RacingDiffs Performance packs, you will get the best possible solution for any kind of racing discipline - drift, rally, circuit, hill climb or time attack.
You can also set it up to be smooth for track days and daily street conditions and it will still be more cost-efficient than buying an aftermarket LSD unit.

Important note:
Please make sure to know which Crown gear spacer you need as the thickness varies depending on the differential gear ratios.
To find out, please check the table below:


E46 Differential ratios

188mm LSD unit(2.65 - 3.07)
188mm LSD unit(3.15 - 4.45)



Low range (2.37 - 2.87)
7,15mm spacer
No spacer needed


Mid range (2.93 - 3.07)
12,15mm spacer
5,15mm spacer


High range (3.15 - 4.45)
19,15mm spacer
12,15mm spacer