Wavetrac® Limited Slip (Rear) Differential | 6-spd Audi B5 A4 | S4 and B6 | B7 A4 Quattro
SKU: 89590376405

Wavetrac® Limited Slip (Rear) Differential | 6-spd Audi B5 A4 | S4 and B6 | B7 A4 Quattro

Sale price$630.90 Regular price$701.00
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Description

Wavetrac® Limited Slip (Rear) Differential | 6-spd Audi B5 A4 | S4 and B6 | B7 A4 QuattroFITS: Audi B5 A4 S4 and B6 B7 A4 Quattro with 6 spd Transmission For All Wheel Drive cars only! REAR Differential The Wavetrac differential uses a patent pending design to improve grip in low traction conditions. Precisely engineered, converging diverging wave profiles are placed on one side gear and its mating preload hub. As the two side gears rotate relative to each other, each wave surface climbs the other, causing them to move apart. This imparts

FITS: Audi B5 A4/S4 and B6/B7 A4 Quattro with 6-spd Transmission

For All Wheel Drive cars only! - REAR Differential


The Wavetrac differential uses a patent pending design to improve grip in low traction conditions. Precisely engineered, converging / diverging wave profiles are placed on one side gear and its mating preload hub. As the two side gears rotate relative to each other, each wave surface climbs the other, causing them to move apart. This imparts an increased normal force through the side gears, increasing the bias ratio as a function of load. This increase occurs automatically only when conditions find it necessary, and it 'reverts' back to its nominal bias ratio quickly and seamlessly, maintaining optimal drivability and performance at all times. It's like having two differentials in one: you get the benefit of a higher bias ratio when needed without detriment to the car's handling.

Interchangeable Friction Plates Provide Controlled Bias

Here's somethonaling else you won't find in any other design:

The Wavetrac diff's behavior can be altered in the field to suit your needs. It comes standard with carbon-fiber bias plates for the best all around performance. Interchangeable plates using materials with different friction coefficients to fine-tune the bias ratio are sold separately.

These friction plates provide a mechanism to tune the response of the differential as a function of applied torque load. The applied torque load manifests itself as an axial load from the differential pinions into the housing. This axial force is then considered a normal force into the friction plate, and as a function of the effective coefficient of friction, will provide a resistive torque to the rotational motion of the differential pinions. The resistive torque will add to the resistance of relative rotation of all components within the differential. The resistive force, however, is non-uniform since it is a function of the axial load from the differential pinions. The unbalance of the resistive torque will manifest as non-uniform energy absorption within the differential causing a bias ratio.

Superior Design, Materials, and Construction

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 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89590376405

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Tyler Durden
Charlottesville, US
★★★★★ 5
Goldilocks of dog toys!
We recently rescued a small/medium bulldog breed (35lbs) and she *loves* toys. Problem was that our other dog's (75lbs) toys were too big. They literally were the size of her. We found that our new baby pooch was constantly raiding our cat's bed with the cat toys. They were more her size and she knew it. I bought her some cat toys (mostly mice with catnip inside and a yarn tail). She *loved* them, but they were too small. She would choke on them and I would literally have to pull them out of her throat by the mouse tail. Scared us too much so we gave (all 20) away to a friend. I scoured Amazon and found these whimsical toys and they are *JUST RIGHT*! Perfect size, have held up several days of chewing and gnawing, squeak pretty well, and my big dog also loves them! These deserve the 4.9 (5.0 but can't please everyone) rating that lead me to purchase them in the first place. Buy with confidence for your medium size (or any size really) fur baby!
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Reviewed in the United States on February 4, 2026
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HandR
Birmingham, US
★★★★★ 5
Super Cute!!
These adorable toys are incredibly cute! My 9-week-old puppy absolutely loves them. There are so many different options that I can easily rotate them to keep him entertained and prevent boredom. So far, they have held up well against his teething, and I've even needed to wash a few of them in my washing machine due to potty training. They are perfect for small dogs and puppies and offer great value for the price.
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Reviewed in the United States on April 28, 2026
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All Dogs...
Bozeman, US
★★★★★ 5
Great bargain and well made
Great assortment of shapes and bright colors. Just the right size for my 15lb terrier mix
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Reviewed in the United States on June 6, 2026
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Laurie A Canning
New York, US
★★★★★ 5
So cute, good quality
So cute!! I got these for my dog’s Christmas stocking and they were so cute and fun. Good quality for the price.
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Reviewed in the United States on April 16, 2026
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J.H.
Los Angeles, US
★★★★★ 5
Good deal
Great deal for some cute toys. All squeakers work.
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Reviewed in the United States on May 27, 2026

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