{"product_id":"eaton-detroit-truetrac-differential-27-spline-dana-30-3-73-and-up-ratio-part-number-912a585","title":"Eaton Detroit Truetrac Differential, 27-Spline, Dana 30, 3.73 and Up Ratio, Part Number 912A585","description":"The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse.  Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.\nDetroit Truetrac® Differential; 27 Spline; 1.16 in. Axle Shaft Diameter; 3.73 And Up Ring Gear Pinion Ratio; Rear; Dana 30\/Reverse; Applies To Non-Disconnect Only;\n\u003cul\u003e\n  \u003cli\u003eOptimized Torque Bias Ratios Deliver Max Acceleration And Handling\u003c\/li\u003e\n  \u003cli\u003eNo Special Lubrication Or Friction Modifiers Needed\u003c\/li\u003e\n  \u003cli\u003eHelical Gear Limited Slip Differential\u003c\/li\u003e\n  \u003cli\u003eDurable; Smooth; Quiet Operation\u003c\/li\u003e\n  \u003cli\u003eWorks In Forward And Reverse\u003c\/li\u003e\n  \u003cli\u003eIdeal For Most Vehicles\u003c\/li\u003e\n  \u003cli\u003eAutomatic Engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Eaton Detroit Truetrac Differential is a helical-gear limited-slip differential designed to improve traction, acceleration, and handling characteristics. Built for Dana 30 applications with 27-spline axle shafts and a 3.73-and-up ring gear and pinion ratio, this unit provides smooth, automatic torque transfer without driver intervention.\u003c\/p\u003e\u003cp\u003ePart Number 912A585 features maintenance-free operation and does not require special lubrication or friction modifiers. Its helical-gear design delivers durable, quiet performance in both forward and reverse, making it a practical traction upgrade for a wide range of vehicles. This differential applies to non-disconnect Dana 30 configurations and is intended for front axle use where compatible.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One Eaton Detroit Truetrac limited-slip differential. Verify axle configuration, spline count, shaft diameter, gear ratio, and non-disconnect fitment before ordering. Vehicle-specific fitment data should be confirmed using the applicable axle and drivetrain specifications.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTorque Biasing Performance: Optimized torque bias ratios help improve acceleration, traction, and handling.\u003c\/li\u003e\n\u003cli\u003eMaintenance-Free Design: Operates without special lubrication or friction modifiers.\u003c\/li\u003e\n\u003cli\u003eHelical-Gear Limited Slip: Automatically redirects torque to the wheel with available traction.\u003c\/li\u003e\n\u003cli\u003eSmooth and Quiet Operation: Delivers durable performance in forward and reverse without manual engagement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Unknown\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":67646950179068,"sku":"912A585","price":662.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/b99887b8556e01aff2bb11ec03f6c212_82d4ee2e-46e0-4cba-a814-b5d9690dd4a2.jpg?v=1791183378","url":"https:\/\/diycustoms.store\/products\/eaton-detroit-truetrac-differential-27-spline-dana-30-3-73-and-up-ratio-part-number-912a585","provider":"diycustoms.store","version":"1.0","type":"link"}