{"product_id":"cusco-type-rs-1-5-way-rear-lsd-1986-1987-toyota-ae86-gts","title":"AE86 CUSCO Type RS 1.5-Way Rear Limited Slip Differential Kouki (Corolla 1986-1987)","description":"\u003ch2\u003e\u003cspan\u003eCUSCO Type RS 1.5-Way Rear Limited Slip Differential\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003eFor\u003cstrong\u003e\u003cspan\u003e Late-1985–1987 Toyota Corolla Levin \/ Sprinter Trueno AE86 Kouki \u0026amp; 1986–1987 Toyota Corolla Sport GT-S AE86 with Manual Transmission\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eOverview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe CUSCO Type RS 1.5-Way Limited Slip Differential is a performance-focused rear differential upgrade for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eKouki \/ late-model Toyota AE86\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for the later AE86 rear differential configuration, it improves traction by controlling the speed difference between the rear wheels and transferring power more effectively when accelerating out of corners.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eCUSCO's Type RS design uses precision coil springs to generate lower initial torque than a conventional cone-spring mechanical LSD. This reduces unnecessary drivetrain resistance while providing quick, progressive lockup in response to throttle input. The result is a mechanical LSD that works well for spirited street driving, autocross, grip driving, and performance-oriented AE86 builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1.5-way configuration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides strong differential lock under acceleration with a milder locking effect during deceleration, offering a balanced setup for drivers who want predictable rear traction without the stronger off-throttle behavior of a full 2-way differential.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eType RS clutch-type mechanical limited slip differential\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e1.5-way rear differential configuration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned specifically for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eKouki \/ late-model AE86 rear differential applications\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong lockup under acceleration with reduced locking effect during deceleration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrecision RS coil-spring design provides responsive engagement with lower initial resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps improve rear-wheel traction during acceleration and corner exit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced clutch-plate pressure helps minimize chatter and supports consistent operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e55° acceleration \/ 20° deceleration cam-angle configuration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e12 RS springs in the standard configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for street performance, autocross, grip driving, and other performance-oriented AE86 setups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eType RS 1.5-Way Operation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA 1.5-way LSD provides its strongest locking action when power is applied through the drivetrain. This helps both rear tires contribute more effectively when accelerating, particularly when cornering or when available traction differs between the inside and outside rear wheels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDuring deceleration, the differential continues to provide a milder locking effect rather than operating as aggressively as a 2-way LSD. This creates a versatile balance between acceleration traction, corner-entry behavior, and everyday drivability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Type RS mechanism uses coil springs between the pressure rings to maintain controlled initial torque. This design provides quick, linear response to throttle input while reducing unnecessary drag when maximum differential lock is not required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eToyota Corolla Levin\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eLate-1985–1987 Toyota Corolla Levin AE86 \u003c\/span\u003e\u003cspan\u003e– Kouki – 4A-GE \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eToyota Sprinter Trueno\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eLate-1985–1987 Toyota Sprinter Trueno AE86 – \u003c\/span\u003e\u003cspan\u003eKouki – 4A-GE \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eToyota Corolla Sport GT-S\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1986–1987 Toyota Corolla Sport GT-S AE86 –\u003c\/span\u003e\u003cspan\u003e Kouki – 4A-GE \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eFitment Notes\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eKouki \/ late-model AE86 application\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eJapanese-market application begins approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOctober 1985\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eApplies after chassis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0193815 \/ 5066286\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for the later AE86 rear differential and axle configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eNot interchangeable with the earlier Zenki AE86 LSD without confirming the complete axle\/differential configuration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eDoes not directly fit the factory North American SR5 S-series rear differential\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAn SR5 requires a compatible \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGT-S \/ T-series rear axle conversion\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e or equivalent rear differential setup before using this LSD\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntended for manual-transmission AE86 applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOriginal differential application is the open rear differential configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDifferential installation requires proper ring-gear, bearing preload, and backlash setup; professional differential installation is recommended\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e CUSCO\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSeries:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Type RS\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Mechanical Limited Slip Differential\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003ePosition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rear\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1.5-Way\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDrive Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rear-Wheel Drive \/ FR\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCam Angle:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 55° Acceleration \/ 20° Deceleration\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eInitial Torque:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 5–7 kgf·m\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eRS Springs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12 Standard \/ 12 Maximum\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDifferential Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clutch-Type Mechanical LSD\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eStandard Differential Application:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Open Differential\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Kouki \/ Late-Model AE86\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e(1) CUSCO Type RS 1.5-Way Rear Limited Slip Differential Assembly\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CUSCO","offers":[{"title":"Default Title","offer_id":53419156832565,"sku":null,"price":1332.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/512f8926-136d-459c-bf19-c794e1ae960f.png?v=1787930381","url":"https:\/\/preserverad.com\/products\/cusco-type-rs-1-5-way-rear-lsd-1986-1987-toyota-ae86-gts","provider":"Preserve Rad","version":"1.0","type":"link"}