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Drivetrain› Differentials and Rear-End Components

Eaton

Eaton Detroit Truetrac Differential 29 Spline 1.27in Axle Shaft Diameter 3.08 & Up Ratio Rear AMC 20

$960.86 $883.99 Save $76.87

SKU: E00K 912A579

In Stock
In Stock
Ships by Aug 30
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Truetrac performs like an open differential under normal driving conditions and automatically senses traction differences to transfer torque to the wheel with the most traction. This provides improved traction and handling without sacrificing streetability.
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Part #: 912A579

The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

Detroit Truetrac (R) Differential | 29 Spline | 1.27 in. Axle Shaft Diameter | 3.08 And Up Ring Gear Pinion Ratio | Rear AMC 20

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

BrandEaton
Part NumberE00K 912A579

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Returns & Fitment

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

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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