WAVETRAC ATB LSD BUILT DIFFERENTIAL FOR F20/F21 M135I (INCL. LCI) WITH 3.08 FINAL DRIVE AXLE 30.309.155WKFM1/M135i

BMW PERFORMANCE PARTS: WAVETRAC ATB LSD BUILT DIFFERENTIAL FOR F20/F21 M135I (INCL. LCI) WITH 3.08 FINAL DRIVE AXLE (30.309.155WKFM1/M135i)

Product Features:

Most BMW axles from 2007 onwards were manufactured with a friction welded ring gear and open differential. This can cause some headaches for installation concerning vehicle downtime while the factory differential/ring gear is separated by precisely machining the parts away.

Wavetrac Europe has now solved this for the M135i equipped with the 33107599411 3.08 axle. 

Please provide your VIN and transmission type at the checkout during the ordering or prior by email or phone so we can verify which axle and ratio are correct for you so we supply the correct axle. 

Each exchange axle comes complete with the following:

1. Wavetrac ATB LSD
2. ARP Ring Gear Bolts
3. New, Genuine BMW Axle Seals
4. Backlash Setup to OE Tolerances
5. Precisely Machined Ring Gear

You will need to spec oil, for this application Motul Competition 75w140 is recommended.

The exchange process is a simple 2 step process you can find below, OR contact Eurotek Tuning to schedule installation:

1. Pay for the product + the exchange deposit and we will send out to you a 30.309.155WKFM1/M135i
2. We will then refund the exchange deposit if a complete, usable (in good working order) axle is received within 7 working days. Axles which require maintenance/repair to be put into service or are not in working order will not be refunded.

Fitment:

*Please provide VIN & Transmission Type before purchase or at checkout so we can verify the Final Drive of your vehicle. If the incorrect final drive axle is installed speed errors will be produced.