{"product_id":"cusco-close-ratio-t50-gear-set-toyota-ae86-4age","title":"AE86 CUSCO Close Ratio Transmission Gear Set | 4A-GE  (Corolla 1983-1987)","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eCUSCO Close Ratio Transmission Gear Set\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor\u003cstrong\u003e 1985–1987 Toyota Corolla Sport GT-S \u0026amp; 1983–1987 Toyota Corolla Levin \/ Sprinter Trueno AE86 with 1.6L 4A-GE \/ 4A-GEU \u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe CUSCO Close Ratio Transmission Gear Set upgrades the AE86 T50 5-speed manual with performance-oriented 1st, 2nd, and 3rd gear ratios designed to reduce the large spacing found in the factory transmission.\u003c\/p\u003e\n\u003cp\u003eChoose between \u003cstrong\u003eType C\u003c\/strong\u003e for a more balanced street-and-track configuration or \u003cstrong\u003eType D\u003c\/strong\u003e for a more competition-focused setup with a taller 1st gear and more aggressive upper-ratio progression.\u003c\/p\u003e\n\u003cp\u003eBoth configurations include replacement 1st, 2nd, and 3rd gears with the corresponding countershaft. The factory 4th and 5th gear ratios are retained, maintaining the conventional 1-2-3-4-5 shift pattern.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClose-ratio transmission upgrade for the Toyota \u003cstrong\u003eT50 5-speed manual\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eChoice of \u003cstrong\u003eType C\u003c\/strong\u003e or \u003cstrong\u003eType D\u003c\/strong\u003e gearing\u003c\/li\u003e\n\u003cli\u003eReplaces \u003cstrong\u003e1st, 2nd, and 3rd gears\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes the matching \u003cstrong\u003ecountershaft\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRetains factory \u003cstrong\u003e4th and 5th gear ratios\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eConventional 1-2-3-4-5 shift pattern\u003c\/li\u003e\n\u003cli\u003eDesigned for rear-wheel-drive \u003cstrong\u003eAE86 4A-GE \/ 4A-GEU\u003c\/strong\u003e applications\u003c\/li\u003e\n\u003cli\u003eReduces RPM drop through the lower and middle gears compared with the factory T50 ratio spread\u003c\/li\u003e\n\u003cli\u003eSuitable for performance street, circuit, autocross, and competition-oriented builds depending on configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eGear Ratio Comparison\u003c\/h2\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eGear\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eFactory T50\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eType C\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eType D\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1st\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.587\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2.701\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2.471\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2nd\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.022\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1.696\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1.696\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3rd\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.384\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1.281\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1.237\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e4th\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.000\u003c\/td\u003e\n\u003ctd\u003e1.000\u003c\/td\u003e\n\u003ctd\u003e1.000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5th\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.861\u003c\/td\u003e\n\u003ctd\u003e0.861\u003c\/td\u003e\n\u003ctd\u003e0.861\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eBoth options substantially change the lower three gears while leaving 4th and 5th unchanged.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eType C vs. Type D\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eType C – Balanced Close Ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eType C uses a \u003cstrong\u003e2.701 first gear\u003c\/strong\u003e, giving it a shorter 1st gear than Type D. This makes pulling away from a stop easier while still providing significantly closer performance-oriented gearing than the standard T50.\u003c\/p\u003e\n\u003cp\u003eType C is the stronger all-around choice for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePerformance street builds\u003c\/li\u003e\n\u003cli\u003eStreet \/ track cars\u003c\/li\u003e\n\u003cli\u003eAutocross\u003c\/li\u003e\n\u003cli\u003eCanyon and touge-style driving\u003c\/li\u003e\n\u003cli\u003eNaturally aspirated or moderately modified 4A-GE engines\u003c\/li\u003e\n\u003cli\u003eDrivers who still want reasonable low-speed usability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eType D – Race-Oriented Close Ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eType D uses a taller \u003cstrong\u003e2.471 first gear\u003c\/strong\u003e and a taller 3rd gear than Type C. The configuration is better suited to an AE86 that spends most of its time being driven hard and where maintaining momentum and engine speed is more important than easy stop-and-go operation.\u003c\/p\u003e\n\u003cp\u003eType D is better suited for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCircuit and competition builds\u003c\/li\u003e\n\u003cli\u003eHigh-RPM 4A-GE engines\u003c\/li\u003e\n\u003cli\u003eDedicated track cars\u003c\/li\u003e\n\u003cli\u003eBuilds using a higher-numerical performance final drive\u003c\/li\u003e\n\u003cli\u003eDrivers prioritizing race-oriented gearing over street convenience\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause Type D has the taller first gear, it can require more clutch work when starting from a stop than Type C or the factory transmission.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eToyota Corolla Sport GT-S\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1985–1987 Toyota Corolla Sport GT-S AE86 – 1.6L 4A-GE  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eToyota Corolla Levin\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1983–1987 Toyota Corolla Levin AE86 – 1.6L 4A-GE \/ 4A-GEU \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eToyota Sprinter Trueno\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1983–1987 Toyota Sprinter Trueno AE86 – 1.6L 4A-GE \/ 4A-GEU \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eT50 5-speed manual transmission only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eVerified for \u003cstrong\u003e4A-GE \/ 4A-GEU AE86 applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNot listed here for SR5 \/ 4A-C applications\u003c\/li\u003e\n\u003cli\u003eReplaces the transmission's 1st, 2nd, and 3rd gears and countershaft\u003c\/li\u003e\n\u003cli\u003eFactory 4th and 5th ratios are retained\u003c\/li\u003e\n\u003cli\u003eDifferential final-drive components are not part of the transmission gear set\u003c\/li\u003e\n\u003cli\u003eProfessional installation by an experienced manual-transmission builder is strongly recommended\u003c\/li\u003e\n\u003cli\u003eInspect synchros, bearings, seals, and other wear components during transmission disassembly and replace as required\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\u003eProduct Type:\u003c\/strong\u003e Close Ratio Transmission Gear Set\u003cbr\u003e\u003cstrong\u003eTransmission:\u003c\/strong\u003e Toyota T50 5-Speed Manual\u003cbr\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Toyota AE86\u003cbr\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.6L 4A-GE \/ 4A-GEU\u003cbr\u003e\u003cstrong\u003eDrivetrain:\u003c\/strong\u003e Rear-Wheel Drive\u003cbr\u003e\u003cstrong\u003eReplacement Gears:\u003c\/strong\u003e 1st, 2nd \u0026amp; 3rd\u003cbr\u003e\u003cstrong\u003eCountershaft:\u003c\/strong\u003e Included\u003cbr\u003e\u003cstrong\u003e4th Gear:\u003c\/strong\u003e Factory Ratio – 1.000\u003cbr\u003e\u003cstrong\u003e5th Gear:\u003c\/strong\u003e Factory Ratio – 0.861\u003cbr\u003e\u003cstrong\u003eShift Pattern:\u003c\/strong\u003e Standard 1-2-3-4-5\u003cbr\u003e\u003cstrong\u003eConfigurations:\u003c\/strong\u003e Type C \/ Type D\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eType C – Balanced Close Ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1st Gear: \u003cstrong\u003e2.701\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e2nd Gear: \u003cstrong\u003e1.696\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e3rd Gear: \u003cstrong\u003e1.281\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBest suited to mixed street and performance use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eType D – Race-Oriented Close Ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1st Gear: \u003cstrong\u003e2.471\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e2nd Gear: \u003cstrong\u003e1.696\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e3rd Gear: \u003cstrong\u003e1.237\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eBest suited to more competition-focused builds\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CUSCO","offers":[{"title":"Type C – Balanced Close Ratio","offer_id":53463490003253,"sku":null,"price":2835.0,"currency_code":"USD","in_stock":true},{"title":"Type D – Race-Oriented Close Ratio","offer_id":53463490036021,"sku":null,"price":2835.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/Gearset.png?v=1788553605","url":"https:\/\/preserverad.com\/products\/cusco-close-ratio-t50-gear-set-toyota-ae86-4age","provider":"Preserve Rad","version":"1.0","type":"link"}