{"product_id":"cusco-type-rs-rear-lsd-ae86-zenki-kouki","title":"AE86 CUSCO Type RS Rear Limited Slip Differential (1983-87 Corolla)","description":"\u003ch2\u003eCUSCO Type RS Rear 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 manual transmission\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe CUSCO Type RS Rear Limited Slip Differential is a clutch-type mechanical LSD for the Toyota AE86 rear axle. Separate \u003cstrong\u003eEarly \/ Zenki\u003c\/strong\u003e and \u003cstrong\u003eLate \/ Kouki\u003c\/strong\u003e differential versions are available, with a choice of \u003cstrong\u003e1.5-way\u003c\/strong\u003e or \u003cstrong\u003e2-way\u003c\/strong\u003e operation.\u003c\/p\u003e\n\u003cp\u003eType RS uses precision coil springs to establish controlled initial torque while keeping clutch-pack preload lower than a conventional high-preload plate LSD. The AE86 Type RS application uses \u003cstrong\u003e12 RS springs\u003c\/strong\u003e with a standard initial torque of \u003cstrong\u003e5–7 kgf·m\u003c\/strong\u003e, providing quick engagement with reduced drag and chatter.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCUSCO Type RS clutch-type mechanical LSD\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eRear differential application for AE86 4A-GE manual-transmission models with the factory open differential\u003c\/li\u003e\n\u003cli\u003eSeparate \u003cstrong\u003eEarly \/ Zenki\u003c\/strong\u003e and \u003cstrong\u003eLate \/ Kouki\u003c\/strong\u003e differential configurations\u003c\/li\u003e\n\u003cli\u003eAvailable in \u003cstrong\u003e1.5-way\u003c\/strong\u003e and \u003cstrong\u003e2-way\u003c\/strong\u003e versions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 RS springs\u003c\/strong\u003e standard \/ maximum\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5–7 kgf·m initial torque\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5-way:\u003c\/strong\u003e 55° acceleration \/ 20° deceleration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-way:\u003c\/strong\u003e 55° acceleration \/ 55° deceleration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eType RS Operation\u003c\/h2\u003e\n\u003cp\u003eThe Type RS mechanism uses coil springs in the pressure-ring assembly to generate initial torque while allowing the clutch plates to operate with lower static preload. This reduces friction and helps the differential respond progressively as drivetrain torque increases.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.5-way\u003c\/strong\u003e version provides strong locking under acceleration with reduced locking on deceleration, making it well suited to grip, touge, autocross, and mixed street\/track use. The \u003cstrong\u003e2-way\u003c\/strong\u003e version uses the same locking angle in both directions for more consistent differential lock during acceleration and deceleration, which suits drift and more aggressive circuit driving.\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, manual transmission, Early \/ Zenki, rear open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\/1985–04\/1987 Trueno (JDM)\u003c\/strong\u003e — 4A-GE, manual transmission, Late \/ Kouki, rear open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e05\/1983–10\/1985 Levin (JDM)\u003c\/strong\u003e — 4A-GE, manual transmission, Early \/ Zenki, rear open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10\/1985–04\/1987 Levin (JDM)\u003c\/strong\u003e — 4A-GE, manual transmission, Late \/ Kouki, rear open differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1985 GT-S (U.S.-Market)\u003c\/strong\u003e — 4A-GE, manual transmission, Early \/ Zenki rear differential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1986–1987 GT-S (U.S.-Market)\u003c\/strong\u003e — 4A-GE, manual transmission, Late \/ Kouki rear 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\u003eSelect the LSD by the installed rear differential generation, not exterior body styling alone.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eEarly \/ Zenki and Late \/ Kouki differential configurations are different and require the matching LSD version.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNorth American SR5 models retaining the factory SR5 rear differential are excluded.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFor an SR5 with a complete GT-S \/ T-Series rear axle conversion, match the LSD to the installed axle generation.\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 CUSCO\u003cbr\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e Type RS\u003cbr\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Limited Slip Differential\u003cbr\u003e\u003cstrong\u003eLSD Design:\u003c\/strong\u003e Clutch-Type Mechanical\u003cbr\u003e\u003cstrong\u003ePosition:\u003c\/strong\u003e Rear\u003cbr\u003e\u003cstrong\u003eDrivetrain:\u003c\/strong\u003e RWD\u003cbr\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e 4A-GE\u003cbr\u003e\u003cstrong\u003eTransmission:\u003c\/strong\u003e Manual\u003cbr\u003e\u003cstrong\u003eFactory Differential:\u003c\/strong\u003e Open\u003cbr\u003e\u003cstrong\u003eRS Springs:\u003c\/strong\u003e 12 Standard \/ 12 Maximum\u003cbr\u003e\u003cstrong\u003eStandard Initial Torque:\u003c\/strong\u003e 5–7 kgf·m\u003cbr\u003e\u003cstrong\u003e1.5-Way Cam Setting:\u003c\/strong\u003e 55° Acceleration \/ 20° Deceleration\u003cbr\u003e\u003cstrong\u003e2-Way Cam Setting:\u003c\/strong\u003e 55° Acceleration \/ 55° Deceleration\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\u003ca href=\"https:\/\/preserverad.com\/products\/ae86-tomei-t-trax-advance-limited-slip-differential-4a-ge\" target=\"_blank\"\u003e\u003cstrong\u003eTOMEI T-TRAX Advance\u003c\/strong\u003e\u003c\/a\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\u003cstrong\u003eCUSCO Type RS\u003c\/strong\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\u003eEarly \/ Zenki \/ 1.5-Way\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e05\/1983–10\/1985 AE86 rear differential\u003c\/li\u003e\n\u003cli\u003e55° acceleration \/ 20° deceleration\u003c\/li\u003e\n\u003cli\u003e12 RS springs\u003c\/li\u003e\n\u003cli\u003e5–7 kgf·m initial torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEarly \/ Zenki \/ 2-Way\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e05\/1983–10\/1985 AE86 rear differential\u003c\/li\u003e\n\u003cli\u003e55° acceleration \/ 55° deceleration\u003c\/li\u003e\n\u003cli\u003e12 RS springs\u003c\/li\u003e\n\u003cli\u003e5–7 kgf·m initial torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLate \/ Kouki \/ 1.5-Way\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10\/1985–04\/1987 AE86 rear differential\u003c\/li\u003e\n\u003cli\u003e55° acceleration \/ 20° deceleration\u003c\/li\u003e\n\u003cli\u003e12 RS springs\u003c\/li\u003e\n\u003cli\u003e5–7 kgf·m initial torque\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLate \/ Kouki \/ 2-Way\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10\/1985–04\/1987 AE86 rear differential\u003c\/li\u003e\n\u003cli\u003e55° acceleration \/ 55° deceleration\u003c\/li\u003e\n\u003cli\u003e12 RS springs\u003c\/li\u003e\n\u003cli\u003e5–7 kgf·m initial torque\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CUSCO","offers":[{"title":"Early \/ Zenki \/ 1.5-Way","offer_id":53634240643381,"sku":"1050","price":1332.0,"currency_code":"USD","in_stock":true},{"title":"Early \/ Zenki \/ 2-Way","offer_id":53634240676149,"sku":"1051","price":1332.0,"currency_code":"USD","in_stock":true},{"title":"Late \/ Kouki \/ 1.5-Way","offer_id":53634240708917,"sku":"1052","price":1332.0,"currency_code":"USD","in_stock":true},{"title":"Late \/ Kouki \/ 2-Way","offer_id":53634240741685,"sku":"1053","price":1332.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/ae86-cusco-type-rs-rear-limited-slip-differential-zenki-kouki-1983-87-corolla-01.png?v=1790384870","url":"https:\/\/preserverad.com\/products\/cusco-type-rs-rear-lsd-ae86-zenki-kouki","provider":"Preserve Rad","version":"1.0","type":"link"}