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The Eaton Detroit Truetrac Differential (Part #917A730) is a high-performance, helical-gear limited-slip differential built for Chrysler 9.25-inch axles with 31-spline shafts. Designed for superior traction, durability, and smooth engagement, the Truetrac operates automatically without clutches or friction platesāproviding a quiet, maintenance-free solution for demanding drivers.
Whether used in street performance builds, towing vehicles, or extreme off-road rigs, the Truetrac distributes torque to the wheel with the most grip, maximizing control and stability under varying traction conditions. Its proven all-gear design ensures consistent performance across all gear ratios, making it ideal for versatile applications from the highway to the trail.
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Features:
Helical-gear, torque-biasing limited-slip differential
Automatic operationāno switches, air lines, or clutch packs required
Maintenance-free, all-gear construction for long-term durability
Enhances traction and handling in wet, icy, or uneven terrain
Compatible with all gear ratios for Chrysler 9.25" axles
Suitable for both performance and off-road applications
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| Specification | Detail |
|---|---|
| Part Number | 917A730 |
| Differential Type | Limited Slip (LSD) |
| Axle Model | Chrysler 9.25" |
| Spline Count | 31 |
| Ring Gear Size | 9.25 in |
| Compatibility | All Ratios |
| Weight | 37 lb |
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Fitment:
Compatible with Chrysler 9.25-inch axles featuring 31-spline shafts, used in a wide range of Dodge and Ram trucks, SUVs, and performance vehicles.
Ideal Usage:
Off-Road: Rock Crawl, Light Trail, Sand Sports, Extreme Off-Road, Work Truck / Towing
On Road: Street & Muscle, Circle Track, Drag Racing, Restoration, Work Truck / Towing
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2017 | Ram | 1500 | Big Horn |
| 2012-2017 | Ram | 1500 | Express |
| 2013-2017 | Ram | 1500 | HFE |
| 2011-2017 | Ram | 1500 | Laramie |
| 2014-2015 | Ram | 1500 | Laramie Limited |
| 2011-2017 | Ram | 1500 | Laramie Longhorn |
| 2015-2017 | Ram | 1500 | Limited |
| 2014-2017 | Ram | 1500 | Lone Star |
| 2011-2016 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2015-2017 | Ram | 1500 | Rebel |
| 2011-2017 | Ram | 1500 | SLT |
| 2014-2017 | Ram | 1500 | Special Service |
| 2011-2017 | Ram | 1500 | Sport |
| 2011-2012 | Ram | 1500 | ST |
| 2011-2017 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2013-2017 | Ram | 2500 | Big Horn |
| 2011-2017 | Ram | 2500 | Laramie |
| 2014-2015 | Ram | 2500 | Laramie Limited |
| 2011-2017 | Ram | 2500 | Laramie Longhorn |
| 2016-2017 | Ram | 2500 | Limited |
| 2013-2015 | Ram | 2500 | Lone Star |
| 2012-2016 | Ram | 2500 | Outdoorsman |
| 2011-2017 | Ram | 2500 | Power Wagon |
| 2011-2017 | Ram | 2500 | SLT |
| 2011-2013 | Ram | 2500 | ST |
| 2013-2017 | Ram | 2500 | Tradesman |
| 2013-2017 | Ram | 3500 | Big Horn |
| 2011-2017 | Ram | 3500 | Laramie |
| 2014-2015 | Ram | 3500 | Laramie Limited |
| 2011-2017 | Ram | 3500 | Laramie Longhorn |
| 2016-2017 | Ram | 3500 | Limited |
| 2013-2015,2017 | Ram | 3500 | Lone Star |
| 2011-2017 | Ram | 3500 | SLT |
| 2011-2013 | Ram | 3500 | ST |
| 2013-2017 | Ram | 3500 | Tradesman |
