Wavetrac Differential Rear Porsche 944 1986>
The Wavetrac Differential for the Porsche 944 (1986 and up, including Turbo) is a state-of-the-art helical gear differential designed and manufactured in the USA by Autotech Driveline. Engineered from a clean slate, its compact gear package features optimized tooth forms for superior strength and enhanced oil retention compared to other designs. The side gear/axle interface is reinforced with maximum material thickness, ensuring durability under high power, making it ideal for high-performance driving. Note: Porsche 944 Turbo and Turbo S models with OEM LSD and transmission oil cooler require conversion to an open-diff style drive gear (part number 016.115.165A and rollpin N.100.792.01). Includes bearing spacer for the small end side of the differential, needed on some models.
The Wavetrac is the only torque-biasing differential with patented technology that prevents wheelspin during zero axle load conditions. Its innovative cam device creates internal load to maintain drive on the gripping wheel, unlike open differentials that lose traction. Crafted with high-strength 9310 alloy steel gears, case-hardened steel billet bodies, and premium ARP fasteners, it offers exceptional quality. Recommended gear oils include 75W90 Motul Gear 300 or 75W140 Motul Gear Competition, avoiding friction modifier additives.
Perfect for street, autocross, or occasional track use, this differential enhances traction and handling. It requires no regular maintenance beyond periodic gear oil changes and includes a transferable Limited Lifetime Warranty for lasting reliability.