{"product_id":"ae86-tomei-t-trax-advance-limited-slip-differential-4a-ge","title":"AE86 TOMEI T-TRAX Advance Limited Slip Differential | 4A-GE (1983-87 Corolla)","description":"\u003ch2\u003eTOMEI T-TRAX Advance Limited Slip Differential\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFor 1983–1987 Toyota Corolla AE86 Trueno \/ Levin and 1985–1987 U.S.-Market Corolla Sport AE86 (GT-S) with 4A-GE and the factory open T-Series rear differential\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe TOMEI T-TRAX Advance is a mechanical clutch-type limited slip differential for Toyota Corolla AE86 4A-GE rear-wheel-drive applications using the T-Series rear differential. Separate Zenki \/ early and Kouki \/ late versions are available because the early and late AE86 rear axle configurations use different differential specifications.\u003c\/p\u003e\n\u003cp\u003eEach version is available as either a \u003cstrong\u003e1.5-way\u003c\/strong\u003e or \u003cstrong\u003e2-way\u003c\/strong\u003e LSD. The internal clutch design uses a high initial torque setting, spring discs, and a large friction surface area to provide quick, repeatable locking response during acceleration and performance driving.\u003c\/p\u003e\n\u003cp\u003eEach T-TRAX Advance AE86 kit includes the limited slip differential assembly and \u003cstrong\u003e2 liters of TOMEI low-friction high-grade differential oil\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMechanical clutch-type limited slip differential for AE86 T-Series rear differential applications\u003c\/li\u003e\n\u003cli\u003eAvailable in \u003cstrong\u003e1.5-way\u003c\/strong\u003e and \u003cstrong\u003e2-way\u003c\/strong\u003e configurations\u003c\/li\u003e\n\u003cli\u003eSeparate \u003cstrong\u003eZenki \/ early\u003c\/strong\u003e and \u003cstrong\u003eKouki \/ late\u003c\/strong\u003e versions\u003c\/li\u003e\n\u003cli\u003e12-disc small-size clutch pack for the AE86 application\u003c\/li\u003e\n\u003cli\u003eHigh initial torque setting for quick differential response\u003c\/li\u003e\n\u003cli\u003eSpring-disc-assisted clutch engagement\u003c\/li\u003e\n\u003cli\u003eDesigned for rear-wheel-drive performance, grip, circuit, and drift-oriented use depending on the selected lock configuration\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003e2 liters of TOMEI differential oil\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e1.5-Way vs. 2-Way\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1.5-Way:\u003c\/strong\u003e Provides strong locking under acceleration with reduced locking on deceleration. This configuration is well suited to street-performance, grip, touge, autocross, and mixed-use builds where smoother off-throttle differential behavior is preferred.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2-Way:\u003c\/strong\u003e Provides strong locking during both acceleration and deceleration. This configuration is better suited to drift, circuit, and more aggressive performance driving where consistent lock in both directions is desired.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eToyota Corolla AE86\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e05\/1983–10\/1985 Trueno (JDM)\u003c\/strong\u003e — 4A-GE, Zenki \/ Early, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\/1985–04\/1987 Trueno (JDM)\u003c\/strong\u003e — 4A-GE, Kouki \/ Late, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e05\/1983–10\/1985 Levin (JDM)\u003c\/strong\u003e — 4A-GE, Zenki \/ Early, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\/1985–04\/1987 Levin (JDM)\u003c\/strong\u003e — 4A-GE, Kouki \/ Late, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1985 GT-S (U.S.-Market)\u003c\/strong\u003e — 4A-GE, Zenki \/ Early, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1986–1987 GT-S (U.S.-Market)\u003c\/strong\u003e — 4A-GE, Kouki \/ Late, T-Series rear differential, factory open differential\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDoes not directly fit the factory North American SR5 S-Series rear axle.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eZenki \/ Early and Kouki \/ Late differential versions are not interchangeable without confirming the installed rear axle configuration.\u003c\/li\u003e\n\u003cli\u003eThe early-to-late differential changeover occurs in October 1985.\u003c\/li\u003e\n\u003cli\u003eCars with rear axle swaps must be matched to the actual installed T-Series differential rather than exterior Zenki \/ Kouki appearance.\u003c\/li\u003e\n\u003cli\u003eThe standard differential application is an \u003cstrong\u003eopen rear differential\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e TOMEI\u003cbr\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e T-TRAX Advance\u003cbr\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Mechanical Clutch-Type Limited Slip Differential\u003cbr\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear\u003cbr\u003e\n\u003cstrong\u003eDrivetrain:\u003c\/strong\u003e Rear-Wheel Drive\u003cbr\u003e\n\u003cstrong\u003eEngine Application:\u003c\/strong\u003e 4A-GE\u003cbr\u003e\n\u003cstrong\u003eRear Differential:\u003c\/strong\u003e Toyota T-Series\u003cbr\u003e\n\u003cstrong\u003eStandard Differential Application:\u003c\/strong\u003e Open Differential\u003cbr\u003e\n\u003cstrong\u003eClutch Discs:\u003c\/strong\u003e 12\u003cbr\u003e\n\u003cstrong\u003eDisc Size:\u003c\/strong\u003e Small\u003cbr\u003e\n\u003cstrong\u003eAvailable Lock Configurations:\u003c\/strong\u003e 1.5-Way \/ 2-Way\u003cbr\u003e\n\u003cstrong\u003eIncluded Oil:\u003c\/strong\u003e 2 Liters TOMEI Low-Friction High-Grade Differential Oil\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhich AE86 LSD Should I Choose?\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eLSD\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eChoose It If…\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTOMEI T-TRAX Advance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAggressive street, track \u0026amp; drift\u003c\/td\u003e\n\u003ctd\u003eYou want quick, direct engagement with 1.5-way or 2-way options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/preserverad.com\/products\/cusco-type-rs-rear-lsd-ae86-zenki-kouki\" target=\"_blank\"\u003e\u003cstrong\u003eCUSCO Type RS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStreet, touge \u0026amp; mixed motorsport\u003c\/td\u003e\n\u003ctd\u003eYou want low-initial-torque response with 1.5-way or 2-way options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/preserverad.com\/products\/os-giken-super-lock-lsd-toyota-ae86-4age\" target=\"_blank\"\u003e\u003cstrong\u003eOS Giken Super Lock\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStreet \u0026amp; track\u003c\/td\u003e\n\u003ctd\u003eYou want smooth, progressive 1.5-way locking with refined low-load behavior\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e2-Way | Zenki \/ Early (05\/1983–10\/1985)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEarly-model AE86 T-Series rear differential\u003c\/li\u003e\n\u003cli\u003e2-way clutch-type LSD\u003c\/li\u003e\n\u003cli\u003eIncludes 2 liters of TOMEI differential oil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2-Way | Kouki \/ Late (10\/1985–04\/1987)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLate-model AE86 T-Series rear differential\u003c\/li\u003e\n\u003cli\u003e2-way clutch-type LSD\u003c\/li\u003e\n\u003cli\u003eIncludes 2 liters of TOMEI differential oil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1.5-Way | Zenki \/ Early (05\/1983–10\/1985)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEarly-model AE86 T-Series rear differential\u003c\/li\u003e\n\u003cli\u003e1.5-way clutch-type LSD\u003c\/li\u003e\n\u003cli\u003eIncludes 2 liters of TOMEI differential oil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e1.5-Way | Kouki \/ Late (10\/1985–04\/1987)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLate-model AE86 T-Series rear differential\u003c\/li\u003e\n\u003cli\u003e1.5-way clutch-type LSD\u003c\/li\u003e\n\u003cli\u003eIncludes 2 liters of TOMEI differential oil\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TOMEI","offers":[{"title":"2-Way | Zenki \/ Early (05\/1983–10\/1985)","offer_id":53593987678517,"sku":"1046","price":890.0,"currency_code":"USD","in_stock":true},{"title":"2-Way | Kouki \/ Late (10\/1985–04\/1987)","offer_id":53593987711285,"sku":"1047","price":890.0,"currency_code":"USD","in_stock":true},{"title":"1.5-Way | Zenki \/ Early (05\/1983–10\/1985)","offer_id":53593987744053,"sku":"1048","price":890.0,"currency_code":"USD","in_stock":true},{"title":"1.5-Way | Kouki \/ Late (10\/1985–04\/1987)","offer_id":53593987776821,"sku":"1049","price":890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/ae86-tomei-t-trax-advance-limited-slip-differential-01.png?v=1790626299","url":"https:\/\/preserverad.com\/products\/ae86-tomei-t-trax-advance-limited-slip-differential-4a-ge","provider":"Preserve Rad","version":"1.0","type":"link"}