{"product_id":"ds402-ds381-eaton-dana-spicer-forward-differential-dpx-reman","title":"DS402 | DS381 Front (Forward) Differential | Eaton Dana-Spicer | Class 8 Trucks | DPX Reman","description":"\u003c!-- Product Hero --\u003e\n\u003ch2\u003eDS402 | DS381 | Eaton Dana-Spicer Forward Differential — Remanufactured by DPX (40K GAWR)\u003c\/h2\u003e\n\u003c!-- Product Summary --\u003e\n\u003cp\u003eHeavy-duty \u003cstrong\u003eforward\u003c\/strong\u003e tandem differential, single reduction with power divider, commonly used in Class 8 trucks. Also known as DS381. \u003cstrong\u003eRemanufactured in Mansfield, Ohio by Discount Parts Exchange - DPX.\u003c\/strong\u003e Each unit is completely disassembled, cleaned, inspected, and \u003cstrong\u003erebuilt to your exact ratio\u003c\/strong\u003e using high-quality OEM and aftermarket components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall DPX to confirm: 419-522-3320.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!-- Highlights --\u003e\n\u003ch3\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e DS402 \/ DS381 (Forward Differential with Power Divider)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle Family:\u003c\/strong\u003e Eaton Dana-Spicer DS341, 402, 402-P, 451-P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGAWR:\u003c\/strong\u003e 40,000 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprox. Weight:\u003c\/strong\u003e 450 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Single-reduction with integrated power divider\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Shaft:\u003c\/strong\u003e 115122 – 2.250\" 44 spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle Gears:\u003c\/strong\u003e 110527 – 2.100\" 41 spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Nut:\u003c\/strong\u003e 95207 (old generation) or 128049 (later generation) – 55mm socket, torque 840-1020 lb-ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Seal:\u003c\/strong\u003e 127719\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Seal:\u003c\/strong\u003e 127720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Nut:\u003c\/strong\u003e 95205 (old) or 127589 (new) – 55mm socket, torque 575-703 lb-ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Castings:\u003c\/strong\u003e 128107, 110814\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Divider Casting:\u003c\/strong\u003e 45481\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Over the road, line-haul, and heavy-duty Class 8 trucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Available Gear Ratios \u0026 Gearset Part Numbers --\u003e\n\u003ch3\u003eAvailable Gear Ratios \u0026amp; Gearset Part Numbers (Post 4-6-89)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ccaption\u003eDS402 \/ DS381 Forward Ratios\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003e2nd Gen Gear Set\u003c\/th\u003e\n\u003cth\u003e3rd Gen Gear Set\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.08*\u003c\/td\u003e\n\u003ctd\u003e212901\u003c\/td\u003e\n\u003ctd\u003e212901\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.25*\u003c\/td\u003e\n\u003ctd\u003e212145\u003c\/td\u003e\n\u003ctd\u003e217979\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.36*\u003c\/td\u003e\n\u003ctd\u003e127265\u003c\/td\u003e\n\u003ctd\u003e217980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.55*\u003c\/td\u003e\n\u003ctd\u003e127266\u003c\/td\u003e\n\u003ctd\u003e217981\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.70*\u003c\/td\u003e\n\u003ctd\u003e127267\u003c\/td\u003e\n\u003ctd\u003e217982\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3.90\u003c\/td\u003e\n\u003ctd\u003e127268\u003c\/td\u003e\n\u003ctd\u003e217983\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.11\u003c\/td\u003e\n\u003ctd\u003e127269\u003c\/td\u003e\n\u003ctd\u003e217984\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.33\u003c\/td\u003e\n\u003ctd\u003e127270\u003c\/td\u003e\n\u003ctd\u003e217985\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.56\u003c\/td\u003e\n\u003ctd\u003e127271\u003c\/td\u003e\n\u003ctd\u003e217986\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4.88\u003c\/td\u003e\n\u003ctd\u003e127272\u003c\/td\u003e\n\u003ctd\u003e217987\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.29\u003c\/td\u003e\n\u003ctd\u003e127273\u003c\/td\u003e\n\u003ctd\u003e217988\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.57\u003c\/td\u003e\n\u003ctd\u003e127274\u003c\/td\u003e\n\u003ctd\u003e217989\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.14\u003c\/td\u003e\n\u003ctd\u003e127275\u003c\/td\u003e\n\u003ctd\u003e217990\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.50\u003c\/td\u003e\n\u003ctd\u003e127276\u003c\/td\u003e\n\u003ctd\u003e217991\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.17\u003c\/td\u003e\n\u003ctd\u003e127277\u003c\/td\u003e\n\u003ctd\u003e217992\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*16\" gearing • Recommended lubricant: Spicer FE 75W-90 synthetic gear oil (or equivalent meeting Dana specifications)\u003c\/em\u003e\u003c\/p\u003e\n\u003c!-- What’s Included --\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRemanufactured DS402 \/ DS381 forward differential rebuilt to your requested ratio by DPX\u003c\/li\u003e\n\u003cli\u003e12-month, unlimited-mileage parts-only warranty\u003c\/li\u003e\n\u003cli\u003eTech support from DPX during install and initial run-in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Fitment Notes --\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCommon in Eaton Dana-Spicer forward axle applications on Class 8 trucks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecial Notation:\u003c\/strong\u003e Early International trucks used a reverse air system for the power divider\u003c\/li\u003e\n\u003cli\u003eVerify ratio, spline count, and generation (old vs later) before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Image Disclaimer --\u003e\n\u003ch3\u003eImage Disclaimer\u003c\/h3\u003e\n\u003cp\u003ePhotos are representative; final appearance may vary by ratio and casting revision.\u003c\/p\u003e\n\u003c!-- Call to Order --\u003e\n\u003ch3\u003eCall to Order\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCall Discount Parts Exchange - DPX for pricing and availability:\u003c\/strong\u003e 419-522-3320\u003c\/p\u003e\n\u003c!-- DPX Drivetrain Tools Hub Snippet --\u003e\n\u003ch3 style=\"color: #c05a2f;\"\u003eDPX Drivetrain Tools Hub\u003c\/h3\u003e\n\u003cp\u003eFree tools built by rebuilders for truckers and fleets — Road Speed \u0026amp; Ratio Calculator, PTO shimming procedure, gear ratio comparison charts, and our full IPL library for instant parts identification.\u003cbr\u003e\u003ca style=\"color: #c05a2f;\" href=\"https:\/\/truckparts4u.com\/pages\/dpx-drivetrain-tools-hub\" rel=\"noopener\" target=\"_blank\"\u003eOpen DPX Drivetrain Tools Hub →\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- Tagline --\u003e\n\u003cp\u003e\u003cstrong\u003eDPX — Ohio’s Premier Heavy-Duty Drivetrain Rebuilder | Built to Perform. Trusted to Last.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Discount Parts Exchange (DPX)","offers":[{"title":"Default Title","offer_id":56542956847270,"sku":"DS402","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/9287\/9270\/files\/DS402_Eaton_Dana-Spicer_Forward_Differential_Remanufactured_by_DPX_on_Branded_Block.jpg?v=1779982911","url":"https:\/\/truckparts4u.com\/products\/ds402-ds381-eaton-dana-spicer-forward-differential-dpx-reman","provider":"Discount Parts Exchange (DPX)","version":"1.0","type":"link"}