This differential was taken from a running 1992 525i Sedan.
The drive ratio is 4.10, and this is an open drive differential, not limited-slip.
This is a medium size case diff with a 188mm ring gear.
All the mounting points are intact.
The input and output flanges are undamaged.
The rear cover is included.
Details can be viewed in the photos.
This is a used original BMW part.