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# 80mm BMW Differential Flange Adapter
- URL: https://bear-prototyping.ghost.io/store/80mm-bmw-differential-flange-adapter/
- Published: 2026-10-28T00:55:46.000Z
- Updated: 2026-10-28T00:55:46.000Z
- Description: This differential flange is used to adapt 6 x 80mm bolt circle differential flanges commonly found in BMWs fitted with automatic transmissions and the 525i with the manual transmission to 1350 spicer yokes.
- Author: Sergei Grishin
- Tags: product, $200.00 + Free Shipping

![](https://storage.ghost.io/c/28/ae/28ae5eef-77d8-49e7-884a-1659e2f2178b/content/images/2026/10/80mm-bmw-driveshaft-adapter-differential-flange-1.jpg)

$200.00  Free Shipping 

This differential flange is used to adapt 6 x 80mm bolt circle differential flanges commonly found in E39 BMWs fitted with automatic transmissions and the 525i with the manual transmission to 1350 spicer yokes.

Perfect for those who want to keep their existing differential and axles when doing power upgrades or a transmission swap.

Precision machined out of lightweight 6061 aluminum with form tapped threads for extra strength.

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**What's Included:**

- 1 differential adapter
- High strength class 12.9 and 10.9 hardware
- Installation instructions

Made in the USA.

![](https://storage.ghost.io/c/28/ae/28ae5eef-77d8-49e7-884a-1659e2f2178b/content/images/2026/10/80mm-bolt-pattern-bmw-driveshaft-adapter-differential-flange-back-side.jpg)

Backside of the 80mm BMW differential flange adapter

![](https://storage.ghost.io/c/28/ae/28ae5eef-77d8-49e7-884a-1659e2f2178b/content/images/2026/10/80mm-bmw-driveshaft-adapter-1350-spicer-yoke-fitment.jpg)

Spicer 3-2-119 1350 Flange Yoke C3-2-531 on top of the adapter

![](https://storage.ghost.io/c/28/ae/28ae5eef-77d8-49e7-884a-1659e2f2178b/content/images/2026/10/bmw-driveshaft-adapter-80mm-6-bolt-pattern-differential-flange-fitment.jpg)

OEM BMW 6 x 80mm differential flange under the adapter

![](https://storage.ghost.io/c/28/ae/28ae5eef-77d8-49e7-884a-1659e2f2178b/content/images/2026/10/80mm-bmw-driveshaft-adapter-included-hardware-high-strength.jpg)

Included hardware - Class 10.9 and 12.9