--- product_id: 17296680 title: "913A561 Trutrac Differential with 31 Spline for Ford 8.8\"" brand: "detroit locker" price: "€ 1387.29" currency: EUR in_stock: true reviews_count: 8 category: "Detroit Locker" url: https://www.desertcart.hr/products/17296680-913a561-trutrac-differential-with-31-spline-for-ford-8-8 store_origin: HR region: Croatia --- # 23.95 lbs 31 Spline Made in USA 913A561 Trutrac Differential with 31 Spline for Ford 8.8" **Brand:** detroit locker **Price:** € 1387.29 **Availability:** ✅ In Stock ## Summary > 🚗 Drive with Confidence: Elevate your performance game! ## Quick Answers - **What is this?** 913A561 Trutrac Differential with 31 Spline for Ford 8.8" by detroit locker - **How much does it cost?** € 1387.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/17296680-913a561-trutrac-differential-with-31-spline-for-ford-8-8) ## Best For - detroit locker enthusiasts ## Why This Product - Trusted detroit locker brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unleash Your Ride:** Transform your Ford 8.8 with precision engineering. - • **OEM Quality Assurance:** Trust in Detroit Locker's legacy of excellence. - • **Seamless Installation:** Designed for a perfect fit, no hassle required. - • **Durability Meets Performance:** Crafted for the toughest terrains and conditions. - • **Elevate Your Driving Experience:** Experience unmatched traction and control. ## Overview The 913A561 Trutrac Differential is a high-performance component designed specifically for Ford 8.8 models. Weighing in at 23.95 pounds and manufactured by Detroit Locker in the USA, this differential features a robust 31 spline design, ensuring superior traction and durability for both on-road and off-road adventures. With precise machining and OEM quality, it promises a seamless installation and an enhanced driving experience. ## Description StopTech BMW M3 / Z4 / 323/323 Touring / 325 / 328 / 330 SS Front Brake Lines Review: The differential itself is awesome. It's amazing how it's unnoticeable it is until ... - The differential itself is awesome. It's amazing how it's unnoticeable it is until you need it. None of the drawbacks of a lunchbox locker, but plenty of the advantages. I drive my truck pretty hard sometimes, even on the street and around corners it acts just like an open diff until the inside slips. You feel it just briefly as the power moves to the outside and carries you through. No crazy locking or wheel hopping, chirping or anything else to upset the balance, it just stays nice and smooth and carries you through with control. I love it, even in the rain it improves normal day to day driving as you miss the occasional slip as you go around corners with too much throttle or climb a steep turn. Offroad and light snow it does wonders as well, it's just so transparent and pulls you through most things quite nicely. You can easily put both left tires on ice or mud on the side of the road and take off just on the grip of the right just like you're supposed to be able to. Definitely helps keep speed in low traction environments. Be sure to get new carrier bearings and a shim kit (the Yukon kit is great Yukon (SK SS12) Super Carrier Shim Kit ). You'll definitely need a press for the carrier bearings as it's a tight fit, I wouldn't risk damaging a bearing trying to use a hammer. It takes 2 minutes with a good press, so even if you need a shop or a buddy to do it, it's worth it. The gears and abs ring on the old carrier came off with a hammer and pry tool pretty easily and can be driven to the new carrier with the bolts, easy peasy no press needed. A little grease or prussian blue helps mark the gears to ensure proper alignment, also a dial indicator for backlash. I replaced the axle bearings and seals at the same time, they were a breeze to pull with a slide hammer even on my old truck. A new diff cover and gasket isn't a bad idea either, they're cheap. I didn't touch the gears or forward parts on the differential. I think it took me about 4 hours start to finish taking my time, I was surprised how fast and easy it went. Review: Undependable - Does not lock consistently, I shoulda went ARB ## Features - Part number: 913A561 - Package Weight: 23.95 pounds - Oem equivalent part number: 913A561 - Package Dimensions: 20.32 L x 20.32 H x 20.32 W (centimeters) ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Detroit Locker | | Brand | Detroit Locker | | Model | Differential | | Item Weight | 24 pounds | | Country of Origin | USA | | Item model number | 913A561 | | Exterior | Machined | | Manufacturer Part Number | 913A561 | | OEM Part Number | 913A561 | ## Images ![913A561 Trutrac Differential with 31 Spline for Ford 8.8" - Image 1](https://m.media-amazon.com/images/I/717dsFa9WIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ The differential itself is awesome. It's amazing how it's unnoticeable it is until ... *by B***N on April 14, 2017* The differential itself is awesome. It's amazing how it's unnoticeable it is until you need it. None of the drawbacks of a lunchbox locker, but plenty of the advantages. I drive my truck pretty hard sometimes, even on the street and around corners it acts just like an open diff until the inside slips. You feel it just briefly as the power moves to the outside and carries you through. No crazy locking or wheel hopping, chirping or anything else to upset the balance, it just stays nice and smooth and carries you through with control. I love it, even in the rain it improves normal day to day driving as you miss the occasional slip as you go around corners with too much throttle or climb a steep turn. Offroad and light snow it does wonders as well, it's just so transparent and pulls you through most things quite nicely. You can easily put both left tires on ice or mud on the side of the road and take off just on the grip of the right just like you're supposed to be able to. Definitely helps keep speed in low traction environments. Be sure to get new carrier bearings and a shim kit (the Yukon kit is great Yukon (SK SS12) Super Carrier Shim Kit ). You'll definitely need a press for the carrier bearings as it's a tight fit, I wouldn't risk damaging a bearing trying to use a hammer. It takes 2 minutes with a good press, so even if you need a shop or a buddy to do it, it's worth it. The gears and abs ring on the old carrier came off with a hammer and pry tool pretty easily and can be driven to the new carrier with the bolts, easy peasy no press needed. A little grease or prussian blue helps mark the gears to ensure proper alignment, also a dial indicator for backlash. I replaced the axle bearings and seals at the same time, they were a breeze to pull with a slide hammer even on my old truck. A new diff cover and gasket isn't a bad idea either, they're cheap. I didn't touch the gears or forward parts on the differential. I think it took me about 4 hours start to finish taking my time, I was surprised how fast and easy it went. ### ⭐ Undependable *by L***E on July 26, 2025* Does not lock consistently, I shoulda went ARB ### ⭐⭐⭐⭐⭐ Best gear diff out there. *by 1***3 on June 24, 2013* Update: I'm a couple years in now on this diff, and it's been flawless. Lots of street miles, countless drag strip passes, over 930rwh, and a 9.90@145 in a 4,000lb GT500. I'm about to upgrade to 33 spline, and I'll be going with a truetrac again. I've run many of the gear diffs currently available, and this TruTrac is the best, hands down. It's incredibly strong, absolutely quiet, and easy to install. So far with this diff I've run a 10.30@137 in a 3950lb GT500. I've also autorossed with it, and put many street miles on it, all with flawless results. I highly recommend this diff to anyone. It's a pretty amazing piece of hardware for the money. ## Frequently Bought Together - Detroit Locker 913A561 Trutrac Differential with 31 Spline for Ford 8.8" - Lucas Oil 10046 SAE 80W-90 Heavy Duty Gear Oil - 1 Gallon - Lucas Oil 10043 SAE 80W-90 Heavy Duty Gear Oil - 1 Quart --- ## 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.hr/products/17296680-913a561-trutrac-differential-with-31-spline-for-ford-8-8](https://www.desertcart.hr/products/17296680-913a561-trutrac-differential-with-31-spline-for-ford-8-8) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*