---
product_id: 87710202
title: "Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30"
brand: "eaton"
price: "KSh302780"
currency: KES
in_stock: true
reviews_count: 5
url: https://www.desertcart.co.ke/products/87710202-eaton912a585-detroit-truetrac-27-spline-differential-for-dana-30
store_origin: KE
region: Kenya
---

# 27 Spline Count Limited Slip (LSD) Alloy Steel Build Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30

**Brand:** eaton
**Price:** KSh302780
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate Your Off-Road Game with Eaton!

## Quick Answers

- **What is this?** Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30 by eaton
- **How much does it cost?** KSh302780 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/87710202-eaton912a585-detroit-truetrac-27-spline-differential-for-dana-30)

## 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

- • **Perfect Fit:** Designed specifically for Wrangler JK, ensuring seamless integration.
- • **Ready to Roll:** No assembly required—just install and hit the road!
- • **Durable Design:** Crafted from high-quality alloy steel with a powder-coated finish for longevity.
- • **Performance Boost:** Achieve superior handling and stability with a ring gear ratio of 3.73 and up.
- • **Unleash Your Ride:** Transform your Dana 30 with the Eaton 912A585 for unmatched traction.

## Overview

The Eaton 912A585 Detroit Truetrac is a high-performance limited slip differential designed for Dana 30 axles, specifically for Wrangler JK models. With a 27 spline tooth count and a robust alloy steel construction, this pre-assembled unit offers exceptional traction and durability, making it the perfect upgrade for off-road enthusiasts.

## Description

Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30

## Features

- Differential Type: Limited Slip (LSD); Gear Spline Tooth Count: 27 EA
- Ring Gear Size: 7.2 IN, Ring Gear Ratio: 3.73 & up
- Axle Description: Dana 30, Wrangler JK ; Axle Location: Front ; Axle Shaft Diameter: 1.16 inches
- Catalog Notes: Applies to non-disconnect only

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Is assembly required | No |
| Assembly type | Already assembled |
| Installation type | Freestanding |
| Primary material | Alloy Steel |
| Finish type | Powder Coated |
| What is in the box? | Shelves |
| Care Instructions | Wipe with Dry Cloth |
| Publisher code | EATAJ |
| Shipping weight | 8.07 Kilograms |
| Item Model Number | 912A585 |
| Manufacturer | Detroit Locker |
| Item model number | 912A585 |
| ASIN | B001DN9R3E |

## Product Details

- **Brand:** Eaton
- **Color:** Silver
- **Recommended Uses For Product:** Off-Road: Rock Crawling, Work Truck / Towing, Extreme Off-Road, Light Trail / Sand Sports, Circle Track, Drag Racing On Road: Restoration, Street and Muscle, Work Truck / Towing
- **Product Dimensions:** 8.4"D x 8.4"W x 8.6"H
- **Special Feature:** Durable, maintenance-free traction, smooth operation

## Images

![Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30 - Image 1](https://m.media-amazon.com/images/I/61Cr0arcQEL.jpg)
![Eaton912A585 Detroit Truetrac 27 Spline Differential for Dana 30 - Image 2](https://m.media-amazon.com/images/I/21ZXc9SSuoL.jpg)

## Questions & Answers

**Q: I ordered this unit for a cj-5 with dana 30 front axle, site says it will fit.  it does not fit! can i get contact information for my mechanic please?**
A: You probably have  a different axle , dana 44 maybe

**Q: I'm planing to install it on my jku 2016 sahara (front dana 30) in replacement of stock open diff. what bearings/shims kit should i use ? thx!**
A: Not the answer your wanting, but in my case they sent the wrong differential but correct box. Everything was back ordered so when I installed diff it was after the 30 days so no return possible, so check.

**Q: Does this kit come with new bearings and crush sleeve?**
A: This kit does not provide any carrier bearings, nor carrier shims, nor pinion bearings, nor pinion shims, nor crush sleeve.

**Q: Does this carrier fit size Yukon Gear Ratio 4.11 dana 30, jeep wrangler yj?**
A: Consult manufacturer before choosing, and be sure you go with the numerically higher version. Believe it is 3.73 and numerically higher version.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    You Won't Know That It's There
  

*by A***M on Reviewed in the United States on 30 August 2019*

Traditionally, you got to choose between a locker that would chirp your outer tire in turns and wear out your tires or an open diff that will reliably direct all power to the wheel with the least traction.  Putting a locker in the front was even worse, sometimes to the point of being outright dangerous.  Two solutions emerged: selectable lockers and TorSen differentials.Air and electronic selectable lockers have a place, and while they 're more complicated than a TorSen, offer fully locked performance.  If you are likely to have a wheel completely off of the ground with any regularity AND wish to use that vehicle on the pavement, then a selectable locker is the best choice.  For the those of us who don't want to install a part that WILL eventually break and will likely stop the vehicle when it does so, the TorSen is a great compromise.A Torque-Sensing differential is essntially an open differential that connects the axles with a worm gear which will force torque to the wheel that is moving faster (i.e. slipping or going around the outer edge of a corner).  It will NOT function if the slipping wheel has ZERO resistance (i.e. a wheel suspended in the air while rock climbing), but this issue can be overcome to a limited extent by tapping the brake (i.e. using the brake disc to a apply just enough resistance to the slipping wheel to engage the differential).  The benefit is that you can easily put them on the front and rear with no perceptible change in handling (i.e. what the US military did with the HMMV), while the system is a closed purely mechanical system with no clutches.For an on/off road vehicle, that isn't going to be rock-climbing, there isn't a better system.

### ⭐⭐⭐⭐⭐ 







  
  
    Good products. Great service
  

*by C***T on Reviewed in the United States on 15 May 2020*

Cant beat an Eaton , great little upgrade . Get a install kit when you install go to install it. .

### ⭐⭐⭐⭐⭐ 







  
  
    Works great.
  

*by J***M on Reviewed in the United States on 16 April 2019*

I added this differential to the front dana 30 on my 1974 CJ5. The differential allows very little slip when both tires are on the ground, and works extremely well. If you lift one of the tires in the air the differential will not send power to the tire on the ground, so in that sense it is not as effective as a true locker. This is a great option for a front axle like a dana 30 where a true locker may add too much stress to the stock parts.

## Frequently Bought Together

- 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
- Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44

---

## 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.co.ke/products/87710202-eaton912a585-detroit-truetrac-27-spline-differential-for-dana-30](https://www.desertcart.co.ke/products/87710202-eaton912a585-detroit-truetrac-27-spline-differential-for-dana-30)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-01*