This is the medium size case with a 188 mm ring gear, and to make it fit your car, you just have to swap the rear cover and perhaps the pop-in drive flanges. You will need to install yours and seal it with silicone or similar. Condition: I have cleaned this unit to look as it does in the photos.The input shaft bearing feels very smooth, and diff had no leaks. The rear cover was removed to inspect the ring and pinion gear and inner workings for abnormal wear. The ring gear and spool are quite clean.
The case has minor rust, not common to CA cars. This is the real deal - no gunk or residues, suggesting this is a well cared for diff, with the oil changed according to BMW recommendations.Be assured, this diff is in great shape and will not whine! It takes experience to evaluate these units, so you can trust my description. Thanks for checking this out, and good luck. Powered by SixBit's eCommerce Solution. The item "BMW E30 E28 E24 Clutch-type 2.79 ratio Limited Slip Differential Posi LSD" is in sale since Sunday, October 11, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Transmission & Drivetrain\Differentials & Parts". The seller is "aardvarc" and is located in Bonita, California. This item can be shipped to United States, Canada.