---
product_id: 257487800
title: "Eaton913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44"
brand: "eaton"
price: "₩3144526"
currency: KRW
in_stock: true
reviews_count: 5
url: https://www.desertcart.kr/products/257487800-eaton913a589-detroit-truetrac-rear-30-spline-differential-for-dana-44
store_origin: KR
region: South Korea
---

# 21.08 cm Length 21.59 cm Dimensions 8.5" Ring Gear Eaton913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44

**Brand:** eaton
**Price:** ₩3144526
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate Your Drive with Eaton's Truetrac Differential!

## Quick Answers

- **What is this?** Eaton913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44 by eaton
- **How much does it cost?** ₩3144526 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/257487800-eaton913a589-detroit-truetrac-rear-30-spline-differential-for-dana-44)

## Best For

- eaton enthusiasts

## Why This Product

- Trusted eaton brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Installation:** Get back on the road faster with straightforward setup.
- • **Unleash Your Ride:** Transform your vehicle's performance with the Eaton Truetrac!
- • **Durable Construction:** Built to withstand the toughest terrains and driving conditions.
- • **Precision Engineering:** Designed for Dana 44, ensuring a perfect fit.
- • **Smooth Power Transfer:** Experience seamless torque distribution for enhanced traction.

## Overview

The Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential is engineered for Dana 44 axles, featuring an 8.5-inch ring gear size. With precise dimensions of 21.08 cm in length and 21.59 cm in both height and width, this differential promises enhanced traction and durability for off-road enthusiasts and everyday drivers alike.

## Description

Eaton913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44

## Features

- Ring Gear Size: 8.5 inches
- The package length is 21.082 centimeters
- The package height is 21.59 centimeters
- The package width is 21.59 centimeters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Eaton |
| Product Dimensions | 8.5"L x 8.5"W x 8.5"H |
| Power Source | vehicle engine |
| Grit Number | 30 |
| Item Weight | 24.5 Pounds |
| UPC | 840379305890 |
| Manufacturer | Eaton |
| Item Weight | 24.5 pounds |
| Item model number | 913A589 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 913A589 |

## Product Details

- **Brand:** Eaton
- **Product Dimensions:** 8.5"L x 8.5"W x 8.5"H
- **Power Source:** vehicle engine
- **Grit Number:** 30
- **Item Weight:** 24.5 Pounds

## Images

![Eaton913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44 - Image 1](https://m.media-amazon.com/images/I/71O35J7upkL.jpg)

## Questions & Answers

**Q: I have a 2014 jku (non rubicon) dana 44 w/ 3.73 gears (rear).  looking to go to 4.56 or 4.88 gears in future is this the truetrac i need?**
A: Yes. 913A589 is the correct part for the "JK"(non-rubicon) Dana 44 rear ALL gears!
 
Here is the caveat; the current version of the Truetrac is dual drilled with 3/8 & 7/16" holes that will accept most all aftermarket gear sets without modification. If planning on using the factory gear set, they utilize 1/2" bolts to retain the gear to the carrier. Plan to use a machine shop to drill out to 1/2" if your application warrants this as the TT is hardened metal.

The coming change.......As of March/April 2019, Eaton will be changing the holes used on the TT. They will be eliminating the 3/8" hole and providing a dual drilled product with a 7/16" & 1/2" compatibility. 

I posted this not so much for the person asking but for those looking to buy this product now.

**Q: Is this lock 100% lock or non-slip?
If it is non-slip what is the model of 100% lock?**
A: It is an 80 percent power transfer limited slip not a locker.

**Q: It will fit in a 2003 rubicon tj with 4.88 ratio??**
A: As far as fitment i suggest Eaton's web sight

**Q: Will this fit my 1998 Jeep Wrangler sport, and do I need anything else to go with it for performance and fit during installation?**
A: It should as long as it has a Dana 44 rear end and I didn’t have to buy anything extra to install it

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Excellent purchase!
  

*by I***G on Reviewed in the United States 🇺🇸 on 7 August 2020*

For anyone questioning if this fits a 2007-2018 JK non-Rubicon dana44 then wonder no longer, it fits.  Gear sets 4:11 and numerically higher.  It’s also drilled for large and small ring gear bolts.  Very happy with the performance of my Trutrac!

### ⭐⭐⭐⭐⭐ 







  
  
    Perfect fit
  

*by A***Z on Reviewed in the United States 🇺🇸 on 1 December 2019*

Great fit for a Dana 44 rear axle 30 spline for my 2001 Jeep TJ

### ⭐ 







  
  
    Verify fitment. Verify fitment. Verify fitment.
  

*by A***B on Reviewed in the United States 🇺🇸 on 10 April 2019*

Based on others' experience, this is a good product, but verify fitment. Verify fitment. Verify fitment. Did I mention you should verify fitment. I called four different outfitters, told em what I had, and this is the one I "needed". The holes have to be drilled out for me to "need" it. Drilling, hardened, steel. Drilling something you paid almost $500 for. Really?

## Frequently Bought Together

- Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44
- Eaton 912A585 Detroit Truetrac 27 Spline Differential for Dana 30
- Yukon Gear & Axle - Gear & Install Kit for Jeep JK non-Rubicon 4.88 Ratio - includes ring and pinion (4.88 ratio) - YGK013

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/257487800-eaton913a589-detroit-truetrac-rear-30-spline-differential-for-dana-44](https://www.desertcart.kr/products/257487800-eaton913a589-detroit-truetrac-rear-30-spline-differential-for-dana-44)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-22*