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Drivetrain› Differentials and Rear-End Components

Redbird Speed

Wavetrac Ford 9" 35 Spline Differential

$795.00 $705.50 Save $89.50

SKU: 56.309.178WK

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Wavetrac Ford 9" 35 Spline Differential is a state-of-the-art helical gear differential designed and manufactured in the USA. It features patented technology to mitigate wheelspin during unloaded wheel conditions, maintaining drive on the gripping wheel. The differential is constructed with super strong 9310 alloy steel gears enclosed in case-hardened steel bodies and utilizes ARP fasteners.
Show original supplier description
The Wavetrac Ford 9" 35 Spline Differential represents a state-of-the-art helical gear differential, engineered and produced in the USA by Autotech Driveline. Its core innovation lies in a patented torque-biasing design that actively mitigates wheelspin when a wheel encounters an unloaded condition. Unlike conventional open differentials, the Wavetrac’s internal cam device generates load during zero axle load situations, ensuring power is continuously directed to the wheel with traction. Constructed for extreme durability, this differential boasts super strong 9310 alloy steel gears housed within a case-hardened steel body. It is secured with high-performance ARP® fasteners, ensuring reliability under demanding applications. The unit features a 3 1/4" bearing bore housing and is specifically designed for Ford 9" 35 spline axles. Each Wavetrac differential comes with a transferable, Limited Lifetime Warranty, underscoring the manufacturer's confidence in its quality and performance. The package includes one Wavetrac differential.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRedbird Speed
Part Number56.309.178WK
CategoryDrivetrain

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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