Fits AWD Rear: VW MK4 R32 & MK1 Audi TT 8N Quattro/Audi S3 8L

Designed from a clean sheet, the new VW MK4 R32 & Audi TT Quattro Differential from Wavetrac brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs. Our gear package is smaller, reducing overall mass, yet is more durable. Attention was also paid to the side gear/axle interface, putting as much material thickness as possible in this critical area - most important when power levels get high. Each Wavetrac Differential is crafted from the highest quality materials available. The internal gears are made from high strength 9310 alloy steel. The diff bodies are machined from case hardened steel billet. To complete the package, every Wavetrac differential is built exclusively using high quality, high strength fasteners from ARP, the world leader in fastener technology.

Fits 2WD 6speed manual trans: VW GTI Golf Jetta MK5 MK6 MK7 2.0T 6speed. B6 Passat 2.0T 6speed. Audi A3 (8P) 2.0T 6speed.

Wavetrac Differentials: Modern Engineering for Superior Performance

Designed from a clean sheet, the new Wavetrac Differential brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs. Our gear package is smaller, reducing overall mass, yet more durable. Attention was also paid to the side gear/axle interface, putting as much material thickness as possible in this critical area - most important when power levels get high.

Wavetrac differentials are 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!).

Each Wavetrac Differential is crafted from the highest quality materials available. The internal gears are made from high strength 9310 alloy steel. The diff bodies are machined from case-hardened steel billet. To complete the package, every Wavetrac differential is built exclusively using high quality, high strength fasteners from ARP, the world leader in fasteners.

All Wavetrac differentials include a transferable, Limited Lifetime Warranty.

Labor to separate and machine ring gear –

This is the labor to separate the ring gear from your OEM 8V TTRS/RS3 open differential, machine it to the correct thickness, and drill the bolt pattern to allow it to be mounted to the Wavetrac differential PN 18-309-190WK.

To start this process you will need to drain your rear end, check OEM backlash, then remove the OEM differential from the housing. From there you’ll need to remove the bearings and box up your OEM differential to send to us. Make sure to both box and pad it well, and ALWAYS insure the shipment for the cost of a replacement should it get lost. From there it will take up to 3-4 weeks for us to do this service. Once completed we will ship you back your finished OEM ring gear for you to mount to your Wavetrac differential, press bearings back on, and reinstall.

We will not be doing installs into rear ends at this time, so DO NOT send your complete rear end housing to us.