--- product_id: 23453416 title: "PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2\" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108" brand: "powertrax" price: "3715.25 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/23453416-powertrax-1940-lr-lock-right-differential-locker-for-gm-8 store_origin: TN region: Tunisia --- # Full-time automatic locking Fits GM 8.2" 28-spline diff Drop-in easy install PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 **Brand:** powertrax **Price:** 3715.25 DT **Availability:** ✅ In Stock ## Summary > 🔧 Lock in legendary traction and never look back! ## Quick Answers - **What is this?** PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 by powertrax - **How much does it cost?** 3715.25 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/23453416-powertrax-1940-lr-lock-right-differential-locker-for-gm-8) ## 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 - • **Maintenance-Free Power:** No clutches or friction plates means zero upkeep and maximum reliability. - • **Install Like a Pro, No Sweat:** Drop-in design fits existing carrier—no ring & pinion removal or special tools needed. - • **Unstoppable Traction, Always:** Automatic locking differential delivers full-time grip for off-road and street dominance. - • **Built to Outlast & Outperform:** Heavy-duty design surpasses stock differentials in durability and torque transfer. - • **Perfect Fit for Classic GM Icons:** Direct replacement for 8.2" 28-spline open carriers in legendary Chevrolet, Pontiac, and GMC models. ## Overview The PowerTrax 1940-LR Lock-Right Differential Locker is a direct-fit upgrade for GM 8.2" 28-spline open carriers, designed to provide full-time automatic locking for superior traction and durability. Compatible with classic Chevrolet, Pontiac, and GMC models, it features a maintenance-free, heavy-duty construction and a simple drop-in installation backed by a 2-year/100,000-mile warranty. ## Description PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier⚙ Key Features & Benefits:Full-Time Traction Control: Automatically locks both wheels for improved off-road capability, acceleration, and stability.Fits GM 8.2" 28-Spline Differentials: Direct drop-in for open carriers in classic Chevrolet, Pontiac, and GMC models.Stronger & More Durable: Outperforms stock open differentials with superior torque transfer and heavy-duty design.Maintenance-Free Operation: No friction plates, clutches, or additives required, ensuring long-term reliability.Easy Installation: Drop-in locker design allows quick installation without removing ring & pinion gears.🚗 Applications & Compatibility:✔️ Chevrolet:1967-1970 Camaro1966-1971 Caprice1964-1972 Bel Air, Biscayne, Chevelle, Chevy II1964-1972 El Camino, Impala, Malibu1970-1972 Monte Carlo1969-1972 Nova✔️ Pontiac:1969-1972 Firebird1970-1972 GTO1964-1970 Tempest1971 Ventura✔️ GMC:1971-1972 Sprint🔄 Replaces OEM Part Numbers:✔️ PowerTrax: 9207822805✔️ Eaton: 19603-1✔️ Auburn Gear: 5420108🛡 Warranty & Why Choose PowerTrax?2-Year/100,000-Mile Warranty: Guaranteed performance for long-term use.Heavy-Duty Construction: Built to handle demanding conditions with maximum strength.Simple Drop-In Installation: No special tools or modifications required for easy fitment. ## Features - ✅ Automatic Locking Differential – Provides full-time traction for enhanced off-road, racing, and performance driving with no friction plates or clutches to wear out. - ✅ Fits GM 8.2" 28-Spline Differentials – Direct replacement for open carriers in classic Chevrolet, Pontiac, and GMC models with 10-bolt GM 8.2" rear ends. - ✅ Stronger Than Stock Open Differential – Engineered for improved durability and torque transfer, making it ideal for high-performance applications. - ✅ Drop-In Locker for Easy Installation – Designed to fit into the existing carrier without requiring major modifications or special tools. - ✅ 2-Year/100,000-Mile Warranty – Backed by PowerTrax for long-lasting performance, ensuring superior traction and vehicle stability in all conditions. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Powertrax | | Brand | PowerTrax | | Model | 1940-LR | | Item Weight | 5 pounds | | Item model number | 1940-LR | | Is Discontinued By Manufacturer | No | | Exterior | Machined | | Manufacturer Part Number | 1940-LR | | OEM Part Number | 1940-LR | ## Images ![PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 - Image 1](https://m.media-amazon.com/images/I/61kX6Z3tzjL.jpg) ![PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 - Image 2](https://m.media-amazon.com/images/I/611588pmE4L.jpg) ![PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 - Image 3](https://m.media-amazon.com/images/I/61O3Qadjw-L.jpg) ![PowerTrax 1940-LR Lock-Right Differential Locker for GM 8.2" 28 Spline Open Carrier | Fits Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO | Replaces Eaton 19603-1, Auburn Gear 5420108 - Image 4](https://m.media-amazon.com/images/I/61X4usZnHdL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great! *by G***. on July 7, 2025* Just installed , verry smooth no problem for me , 👍👍 ### ⭐⭐⭐⭐⭐ Works fantastic *by A***. 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. ### ⭐ Last 8 months *by H***. on October 30, 2024* I have a 1998 Toyota T100, 4x4 with the 8.4 axle. I was looking for a new solution to replace my stock open differential once it finally gave up after 26 years of solid use. Came across this PowerTrax 1615-LR Lock-Right Differential Lock Assembly. $300+ was a good price. Locks up in off road use and should lock/unlock on the street. Easy installation. Had a shop look over my work and they said it looked good.Seemed to work pretty good the first 2 months. Did the break in period, swapped out the diff oil. Did everything you're supposed to do. Then I started to get some slamming coming out of the rear differential. Felt like someone was crashing into the back of my truck. Asked many of knowledgable people about how these worked and if that kind of clacking and punching was common and they all said, "Yea. Those things are notorious for all kinds of weird sounds and actions." So I continued to use it. Well, as of 10/25/24 (8 months since I bought it), I'm replacing it with an electronic locker. As you can see from the picture, all the teeth are rounded off and the pins and springs seats are broken.Showed the gear and axle shop my differential and they said that this is common for these kinds of lockers. --- ## 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/23453416-powertrax-1940-lr-lock-right-differential-locker-for-gm-8](https://www.desertcart.tn/products/23453416-powertrax-1940-lr-lock-right-differential-locker-for-gm-8) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-09*