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Wavetrac

Wavetrac BMW E39 E52 E9X Limited Slip Differential (335i & 540i)

Wavetrac BMW E39 E52 E9X Limited Slip Differential (335i & 540i)

Regular price £1,653.00 Inc. VAT
Regular price £1,740.00 Sale price £1,653.00 Inc. VAT On sale

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Simply put - Wavetrac is the only gear diff on the market that does not lose all drive when one axle is unloaded. Axles become unloaded in aggressive driving, track cornering, extremely slick surfaces, etc. It happens more than most people realise.

We won’t go into torque bias ratios or the concept of how torque biasing diffs work at this point. Let’s get to how the Wavetrac affects performance:

For example, you have a conventional gear diff (OEM, Quaife, MF, OBX, Truetrac, Torsen, etc.), you're on a race track for a track day and during cornering your inside wheel bumps over the curbing. This is normal for track driving. The issue is that for the brief moments your inside tire becomes unloaded when bouncing over curbs, your other wheel is not getting drive - is not putting power down. Gear diffs need load on both axles in order to function. The result on a track (or during aggressive driving) is that there are many times when a normal gear diff supplies only intermittent power to the gripping wheel.

Now, same track with Wavetrac: the patented cam device in the Wavetrac prevents loss of drive when that inside wheel is unloaded. The device is able to generate a load inside the diff (to replace the lost load as it happens) that can then be biased to the gripping wheel - in the end making more consistent power delivery through a corner. That makes the car more predictable, and faster overall.

 

The BMW E39 540I Differential is a state-of-the-art helical gear differentials designed, developed, and manufactured in the USA by AutoTech Driveline. The Wavetrac Differential is the only torque biasing differential on the market with patented technology that mitigates wheelspin when an unloaded wheel condition arises. During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping wheel instead of acting like an open diff (and going nowhere!). Super strong 9310 alloy steel gears are enclosed in case-hardened steel bodies, held together with ARP fasteners. All Wavetrac differentials include a transferable, Limited Lifetime Warranty.

 

Note: This does not require any machining or Install Kit.

 

  • Patented Carbon Fibre Bias Plate for the pinions. All other gear type LSDs run the pinions on the housing, meaning the friction from 0 miles is different to 100 miles, thus effectiveness is reduced over the life of the diff. With the Wavetrac performance is consistent with the Carbon Fibre bias plates!
  • Patented Wave Profile eliminates the effect of a near to and zero load condition drive ability issues found in all other gear type ATB LSDs.
  • ARP Bolts used throughout for superior faster reliability. 
  • 9310 steel gears run in billet or forged steel bodies. 
  • Manufactured & Designed in the USA

  

BMW Petrol models with 215K Axle Bolted OEM Ring Gears including:

  • BMW 3 Series E9X 335i M/T (2004 - 3/2007)
  • BMW 3 Series E9X 335i A/T (2004 - 3/2007)
  • BMW 5 Series E39 540i
  • BMW Z Series E52 Z8

 

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.

 

30.309.170WK

 

Manufactured by

Wavetrac

 

Warranty

Wavetrac Differential Limited Lifetime Warranty

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