--- product_id: 257487800 title: "Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44" brand: "eaton" price: "VT466945" currency: VUV in_stock: true reviews_count: 5 url: https://www.desertcart.vu/products/257487800-eaton-913a589-detroit-truetrac-rear-30-spline-differential-for-dana store_origin: VU region: Vanuatu --- # 21.08 cm Length 21.59 cm Dimensions 8.5" Ring Gear Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44 **Brand:** eaton **Price:** VT466945 **Availability:** βœ… In Stock ## Summary > πŸš— Elevate Your Drive with Eaton's Truetrac Differential! ## Quick Answers - **What is this?** Eaton 913A589 Detroit Truetrac Rear 30 Spline Differential for Dana 44 by eaton - **How much does it cost?** VT466945 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/257487800-eaton-913a589-detroit-truetrac-rear-30-spline-differential-for-dana) ## 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 - β€’ **Easy Installation:** Get back on the road faster with straightforward setup. - β€’ **Unleash Your Ride:** Transform your vehicle's performance with the Eaton Truetrac! - β€’ **Durable Construction:** Built to withstand the toughest terrains and driving conditions. - β€’ **Precision Engineering:** Designed for Dana 44, ensuring a perfect fit. - β€’ **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 | |---------------|-------| | ASIN | B001GC90A2 | | Best Sellers Rank | #745,839 in Automotive ( See Top 100 in Automotive ) #15 in Automotive Replacement Splined Drives #381 in Automotive Replacement Differential Assembly Kits | | Brand Name | Eaton | | Customer Reviews | 4.4 4.4 out of 5 stars (60) | | Item Diameter | 1.31 Inches | | Item Weight | 25.17 Pounds | | Manufacturer | Eaton | | Number of Teeth | 30 | | UPC | 840379305890 | ## 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 ![Eaton 913A589 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 πŸ‡ΊπŸ‡Έ 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 πŸ‡ΊπŸ‡Έ 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 πŸ‡ΊπŸ‡Έ 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/257487800-eaton-913a589-detroit-truetrac-rear-30-spline-differential-for-dana](https://www.desertcart.vu/products/257487800-eaton-913a589-detroit-truetrac-rear-30-spline-differential-for-dana) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*