# Eaton Detroit Truetrac Differential 20-25 GM 2500HD Diesel 6.6 Only with Rear 31 Spline Axles

Eaton Detroit Truetrac Differential 20-25 GM 2500HD Diesel 6.6 Only with Rear 31 Spline Axles

-   Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
-   No Special Lubrication Or Friction Modifiers Needed
-   Helical Gear Limited Slip Differential
-   Durable; Smooth; Quiet Operation
-   Works In Forward And Reverse
-   Ideal For Most Vehicles
-   Automatic Engagement

This Part Fits:

Year

Make

Model

Submodel

2020-2025

GMC

Sierra 2500 HD

AT4

2024-2025

GMC

Sierra 2500 HD

AT4X

2020-2021

GMC

Sierra 2500 HD

Base

2020-2025

GMC

Sierra 2500 HD

Denali

2024-2025

GMC

Sierra 2500 HD

Denali Ultimate

2022-2025

GMC

Sierra 2500 HD

Pro

2020-2025

GMC

Sierra 2500 HD

SLE

2020-2025

GMC

Sierra 2500 HD

SLT

## Details

- **Price:** 1848.12 CAD
- **Vendor:** Eaton
- **Type:** Differentials

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1848.12 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/eaton-detroit-truetrac-differential-20-25-gm-2500hd-diesel-6-6-only-with-rear-31-spline-axles)
> Updated: 2026-06-27