BMW 215LW Spline Type Ring & Pinion 2.56 (MF-TRS-02E25)
MFactory Crown and Pinion to suit BMW 135i DCT, M235i DCT, 335i DCT and 335d. They have a long spline input, with a 50mm nut. They are not cross-compatible. Special tools are required to install the pinion gear. To install these to vehicles with a welded crown gear, you will require an LSD as well. These are not bolt-in to vehicles without the purchase of an LSD also.
Why not add an LSD while you're changing the gear ratio? It's a good time to install and LSD while you're there. If installing locally, you will also need a differential rebuild kit.
We can rebuild your diff for you. We offer reasonable return postage rates via Couriers Please. Contact us for a fast quote.