--- product_id: 27807019 title: "PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential" brand: "powertrax" price: "3122.17 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/27807019-powertrax-1220-lr-lock-right-differential-locker-31-spline-fits store_origin: TN region: Tunisia --- # Automatic full locking 31 spline axle precision Drop-in easy install PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential **Brand:** powertrax **Price:** 3122.17 DT **Availability:** ✅ In Stock ## Summary > 🔧 Lock in power, unlock your off-road potential! ## Quick Answers - **What is this?** PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential by powertrax - **How much does it cost?** 3122.17 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/27807019-powertrax-1220-lr-lock-right-differential-locker-31-spline-fits) ## Best For - powertrax enthusiasts ## Why This Product - Trusted powertrax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Outlast:** Maintenance-free with no clutches or friction plates—durability that keeps pace with your toughest drives. - • **Seamless DIY Upgrade:** Drop-in design fits Chrysler 9.25 rear differentials with zero carrier or ring & pinion mods—save time and money. - • **Confidence-Backed Warranty:** 2-year/100,000-mile coverage ensures your investment is protected on every adventure. - • **Unmatched Traction Mastery:** Automatically locks both wheels for superior grip on mud, snow, and rocks—never get stuck again. - • **Versatile Vehicle Compatibility:** Fits a wide range of Dodge, Chrysler, and Plymouth trucks & SUVs from 1970-2011—one locker, endless possibilities. ## Overview The PowerTrax 1220-LR Lock-Right Differential Locker is a precision-engineered, automatic locking differential designed for Chrysler 9.25 rear axles with 31 splines. It converts open differentials into fully locked units for equal torque distribution, enhancing traction and handling in off-road, towing, and performance scenarios. Featuring a drop-in design for easy installation without modifications, it requires no maintenance thanks to its frictionless operation. Compatible with a broad range of Dodge, Chrysler, and Plymouth vehicles from 1970 to 2011, it comes backed by a 2-year or 100,000-mile warranty for reliable, long-lasting performance. ## Description PowerTrax 1220-LR Lock-Right Differential Locker – 31 Spline – Fits Chrysler 9.25 Rear – Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster – Rear Differential🔹 Product Overview:The PowerTrax Lock-Right Differential Locker is a high-performance traction solution for Chrysler 9.25 rear differentials. Designed for 31 spline axles, it enhances vehicle control in off-road, towing, and extreme driving conditions.🔹 Features & Benefits:Automatically locks both wheels together for increased traction on challenging terrains like mud, snow, and rock.Compatible with Chrysler 9.25" rear open differentials, providing an easy upgrade without modifying the ring and pinion.Drop-in design for quick installation, making it a cost-effective alternative to expensive limited-slip or full-locking differentials.Maintenance-free operation with no clutches or friction plates, reducing wear and eliminating the need for servicing.Ideal for daily driving, off-road adventures, and heavy-duty towing, improving overall vehicle performance.🔹 Applications & Compatibility:Chrysler Aspen (2007-2009)Dodge Ram 1500 (1994-2010)Dodge Dakota (1997-2010)Dodge Durango (1998-2009)Dodge Ramcharger (1974-1994)Plymouth Trailduster (1974-1981)And many more Dodge, Chrysler, and Plymouth vehicles from 1970-2011🔹 Replaces for:Eaton: 187C172A, 913A368Auburn Gear: 542070, 544910Spicer: 80754PowerTrax: 9203923105, 9203923125, LS309231🔹 Warranty:Backed by a 2-year or 100,000-mile warranty, ensuring superior quality, performance, and longevity.🔹 Why Choose PowerTrax?PowerTrax is a leading brand in differential technology, offering high-quality traction solutions for off-road, heavy-duty, and daily driving needs. ## Features - ✅ PowerTrax Lock-Right automatic locker designed for Chrysler 9.25 Rear differentials with 31 spline axles, providing superior traction and off-road performance. - ✅ Converts an open differential into a fully locked unit, ensuring equal torque distribution to both wheels for improved handling in off-road, towing, and performance applications. - ✅ Drop-in design for easy installation without modifying the carrier or ring and pinion, making it ideal for do-it-yourselfers and professional mechanics. - ✅ Maintenance-free, with no friction plates or clutches, ensuring long-lasting durability and consistent engagement without wear or additional servicing. - ✅ Backed by a 2-year or 100,000-mile warranty, offering reliable performance for Dodge, Chrysler, and Plymouth trucks and SUVs from 1970 to 2011. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Powertrax | | Brand | PowerTrax | | Model | 1220-LR | | Item Weight | 8 pounds | | Item model number | 1220-LR | | Is Discontinued By Manufacturer | No | | Exterior | Machined | | Manufacturer Part Number | 1220-LR | | OEM Part Number | 544910, LBC9.25 | ## Images ![PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential - Image 1](https://m.media-amazon.com/images/I/61NRKBeyOyL.jpg) ![PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential - Image 2](https://m.media-amazon.com/images/I/61h2iQrOHSL.jpg) ![PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential - Image 3](https://m.media-amazon.com/images/I/61CQaPgrg+L.jpg) ![PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential - Image 4](https://m.media-amazon.com/images/I/61h2iQrOHSL.jpg) ![PowerTrax 1220-LR Lock-Right Differential Locker, 31 Spline, Fits Chrysler 9.25 Rear, Compatible with Dodge Ram 1500, Durango, Dakota, Chrysler Aspen, Plymouth Trailduster, Rear Differential - Image 5](https://m.media-amazon.com/images/I/61CQaPgrg+L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Works fantastic *by A***. on Reviewed in the United States on March 17, 2023* The media could not be loaded.  Pros -it works great off road and in the snow, totally locks the diff up, easy to install. IMPORTANT axle end play specs, set them right!! Wife drives the vehicle and doesn’t notices it. on road works well also.Cons - install manual sucks, clunky at times, hard on tires.It is easy to install. Unfortunately in the Chrysler 9 1/4 diff I installed this on came with Posi case. And the original part I ordered was the one for the Posi case. I didn’t fit, called tech support to verify I had the right part, they were quick to help. Unfortunately I had to order this locker along with new open case $135 new spider gear set $70 “just for the shims” the backlash adjustment tool $25 bearing set $100, fee to get the bearing pressed on $40, and backlash gauge for $30. I installed this on a 1999 Durango 4wd. The installed required a lot more work also had to weld the abs/speed tone ring to the case because when installing the original ring gear to the new open case. The tone ring had enough clearance to spin free. Time consuming and annoy. But the locker works fantastic. On road it’s mildly noticeable clicking around turns and clunky at times. But overall not a big deal, my wife drives the Durango often and has never complained about it.Video upload was with vehicle in 2wd. ### ⭐ 1.0 out of 5 stars DONT BUY THIS FOR A 9.25 DODGE REAR! *by O***. on Reviewed in the United States on February 12, 2024* DONT BUY THIS! Spend over 2 hours trying to fish the c clips off the axle after I found out the center pin doesn’t fit. (If y’all are her looking for answers on how to remove the c clip I recommend spraying brake cleaner or degreaser all over to dry it up so it don’t stick then once the c clip falls down into that nice inconvenient space they made for it to get stuck in jam a thin screw driver threw the gap in the teeth on both sides of the c clip and twist and bend your screw driver in it… good luck) ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Best offroad mod, period. *by A***R on Reviewed in the United States on July 23, 2019* Installed this locker into the rear my wheeler, a 03 durango, and took it offroad. Made a world of a difference in the dirt! Dang near unstoppable! The install was okay. The instructions are lacking, and are written in a generic form, so YouTube helped. Driveability is not effected as much as I've heard/read. Yes, you do hear the clicking when turning slow and tight, but only with the windows down and/or and radio low or off. And even then it's not loud. I also used 85w140, which helped quiet it down. Biggest driveability change is to coast through turns, and not power through. All in all, I would recommend this mod to anyone looking for some additional traction, be it on or offroad, wheeler or daily driver. --- ## 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.tn/products/27807019-powertrax-1220-lr-lock-right-differential-locker-31-spline-fits](https://www.desertcart.tn/products/27807019-powertrax-1220-lr-lock-right-differential-locker-31-spline-fits) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-07*