BMW 210mm Ring & Pinion 4.10 Motorsport - DiffLab

BMW 210mm Ring & Pinion 4.10 Forged Series (E46 E60 E90 M3/M5)

Diff Lab

  • $2,100

***Due approx October 2022***

Forged Series Crown and Pinion to suit E36/E46 M3, E28/E34 M5, V8, V12 including E34 540i, 740i, 750i, 850i etc. These new forged and peened gears use M14 bolts.

Forged Series gears are:

  • Made from Japanese SAE8620 steel
  • Machined using multi-axis CNC
  • Double tempered
  • Surface ground
  • Sub-zero processed
  • Micro shot peened

Our Forged Series gears have a tensile U/Y strength of over 900/550 MPa and HRC 61 hardness. They are the best final drive gears in the business, and only available at Diff Lab.

These are the perfect upgrade for the E36 M3 3.2L 6MT, E46 M3 6MT and E90 M3 6MT.

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. We stock the Hyperlock to suit. If installing locally, you will also need a differential rebuild kit. If your LSD is worn beyond acceptable limits, you can also install an LSD rebuild kit.

We can rebuild your diff for you. We offer reasonable return postage rates via Couriers Please. Contact us for a fast quote.

Need help selecting the best ratio for your car. Look no further. Selecting the Right Ratio.

These must be installed either by me or by a professional and competent diff builder. See our Recommended Diff Builders page for more info.

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