BMW 8HP AWD xDrive to RWD swap adaptor – BMW flexible coupling LK = 105 mm / 12

Adaptor for converting a BMW 8HP AWD xDrive gearbox to rear-wheel drive (RWD).

The adaptr is designed for a BMW flexible coupling LK = 105 mm / 12.

DUE TO EXTREMELY HIGH VOLUMES OF ORDERS, DELIVERY TIME OF CAN TAKE UP TO 5 WEEKS

THANK YOU FOR UNDERSTANDING

PLEASE MENTION THE ENGINE and GEARBOX CODE IN THE NOTES

Key features of the adaptor:

• Housing made from the strongest aluminium alloy available on the market – AW7075 (Fortal)
• Drive shaft transmitting power from the output shaft of the 8HP xDrive gearbox to the prop shaft, made from 42CrMo4 steel, heat treated; the shaft includes a 16 mm centring spigot for the prop shaft
• Drive shaft mounted in the housing on a double bearing, ensuring precise centring and reliable power transfer; the entire assembly is centred on the gearbox housing spigot 
• Mounting bolts included
• Optional choice of two gearbox mounting brackets:
• Standard BMW setup with 2 polyurethane mounts
• MACKAY A1158 mounts 

Why choose Adamat Performance?

• Over 15 years of motorsport experience.

Adamat Performance have been supplying high-performance clutches for manual transmissions for powerful street cars and highly tuned turbo engines competing in drifting, racing, rallying, and drag events.

5 years of experience producing conversion kits for 8HP automatic and DCT gearboxes.

• State-of-the-art measurement equipment.

Adamat Performance use a modern ATOS GOM 3D scanner, ensuring outstanding measurement precision with a maximum volumetric error of <0.002 mm.

For even higher precision, our workshop is equipped with a FARO GAUGE ARM measuring arm capable of 0.0003 mm accuracy.

• Professional design software.

All design work is carried out using Dassault Systèmes SolidWorks Professional, under a fully licensed and regularly updated subscription, ensuring we always work with the latest version.

• High-end CNC machining.

All parts are produced on DMG MORI CNC machines, regularly serviced and maintained.

Our machining precision is no worse than 0.01 mm, guaranteeing perfect alignment between engine and gearbox.

In accordance with international ITAR standards, general industrial machinery must not exceed a positioning accuracy of 0.006 mm, which we strictly adhere to.

• Premium certified materials only.

Adamat Performance use only the highest quality certified materials, including AlZnMg+Ti aluminium alloys with titanium additives for flywheels—produced exclusively to individual order.

These alloys match the strength of 42CrMo4 steel while being considerably lighter.

Adamat Performance adapter plates are made from AW7075-T651 aluminium (Fortal), which is nearly three times stronger than common AW2017 aluminium.

We source materials from reputable suppliers in the EU and the USA.

• No outsourcing to China.

We do not import materials or subcontract production to Chinese manufacturers.