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. Differential and side drive flanges only. Comes with NO rear cover. The input shaft bearing feels very good and the diff is in great shape, with no leaks.
I have cleaned this unit to look as it does in the photos. 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 minimal rust, 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. The unit weighs approximately 85 lbs when boxed up.
Thanks for checking this out, and good luck. Powered by SixBit's eCommerce Solution. The item "BMW E30 E28 E24 E23 3.73 OEM Clutch Type 188 med Limited Slip Differential LSD" is in sale since Friday, December 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.