{"product_id":"synchrotech-transmission-synchro-spring-set-b-series","title":"Synchrotech B Series Synchro Spring Set for B16\/B17\/B18","description":"\u003cul\u003e\n\u003cli\u003eComplete, 5 Gear Spring Set \u003c\/li\u003e\n\u003cli\u003eReplace with Every Synchro Job \u003c\/li\u003e\n\u003cli\u003eTired Springs Grind Like Worn Synchros \u003c\/li\u003e\n\u003cli\u003eCheap Insurance for Race Driven B Series \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eSynchrotech B-Series Synchro Spring Set - B16, B17 \u0026amp; B18\u003c\/h3\u003e\n\n\u003cp\u003eSprings are the part nobody thinks about and everybody should. They're what pushes the blocker ring against the cone to start the synchronizing action every time you shift, and when they weaken, the synchro can't engage firmly enough to do its job. You get a grind that feels exactly like a worn synchro even when the synchro itself still has material left. This is the complete 1-5 spring set for B-series transmissions.\u003c\/p\u003e\n\n\u003ch4\u003eWhy Tired Springs Feel Like Worn Synchros\u003c\/h4\u003e\n\n\u003cp\u003eWorth understanding, because it's the reason these get overlooked in a rebuild.\u003c\/p\u003e\n\n\u003cp\u003eYour synchro can only do its job if it's pressed firmly against the cone. That pressure comes from the spring. As the spring loses tension over decades of heating and cycling, the synchro engages more weakly, takes longer to bring the gear to speed, and eventually can't finish the job before the sleeve arrives.\u003c\/p\u003e\n\n\u003cp\u003eThe result is a grind. Same symptom as a worn synchro, different cause, and no amount of new friction material fixes it if the springs behind it are done.\u003c\/p\u003e\n\n\u003ch4\u003eAlways Replace Springs With Synchros\u003c\/h4\u003e\n\n\u003cp\u003eThe practical advice worth the most on this page. If you've got the transmission open for synchro work, put fresh springs in at the same time.\u003c\/p\u003e\n\n\u003cp\u003eThey've been cycling and heating alongside everything else for the same number of years and the same number of shifts. On a B-series that's now twenty-five to thirty-five years old, that's a great many shifts, and springs don't look worn even when they've lost meaningful tension.\u003c\/p\u003e\n\n\u003cp\u003eThey're the cheapest part in the assembly and among the most annoying to have to go back in for. Reusing them behind a fresh set of carbon or brass synchros is how a rebuild ends up feeling only slightly better than it did before.\u003c\/p\u003e\n\n\u003ch4\u003eSprings Alone, Or The Master Kit?\u003c\/h4\u003e\n\n\u003cp\u003eWorth deciding before you order.\u003c\/p\u003e\n\n\u003cp\u003eBuy this set on its own if you've inspected the transmission and your synchros, sleeves, and bearings are genuinely still good. That happens, particularly on a lower mileage car where the springs have simply lost tension with age rather than the whole assembly being worn.\u003c\/p\u003e\n\n\u003cp\u003eIf you're finding wear in more than one place, the \u003ca href=\"https:\/\/www.hybrid-racing.com\/products\/synchrotech-b-series-master-synchro-rebuild-kit?_pos=5\u0026amp;_sid=75aa0054e\u0026amp;_ss=r\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eB-series master rebuild kit\u003c\/a\u003e includes these springs along with synchros, sleeves, bearings, and seals, and works out cheaper than buying the pieces separately. Given the labor to get in there, most people going this deep want the full kit.\u003c\/p\u003e\n\n\u003ch4\u003eMatch Your Transmission Code\u003c\/h4\u003e\n\n\u003cp\u003eFour versions, and the split is by transmission rather than by car. Check the code on your case rather than going by what the chassis is, especially on a swapped or rebuilt gearbox.\u003c\/p\u003e\n\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth scope=\"col\"\u003ePart Number\u003c\/th\u003e\n            \u003cth scope=\"col\"\u003eTransmission\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSP101\u003c\/td\u003e\n            \u003ctd\u003eY80, S80, S4C, S21, Y21 (B16A, B16B, B17A, B18C)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSP103\u003c\/td\u003e\n            \u003ctd\u003eS1, Y1 cable (1989-1991 B-series)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSP105\u003c\/td\u003e\n            \u003ctd\u003eY2, A1, J1 cable (1989-1991 B-series)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSP107\u003c\/td\u003e\n            \u003ctd\u003eB18A, B18B\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eTwo things worth noting. The \u003cstrong\u003e1989-1991 cable transmissions split two ways\u003c\/strong\u003e, so SP103 and SP105 cover the same years and different gearboxes. And the \u003cstrong\u003eB18A and B18B take a different set\u003c\/strong\u003e than the B18C, so don't assume any B18 spring set works.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003eHonda and Acura B16, B17, and B18 transmissions. See the table above for the correct set.\u003c\/p\u003e\n\n\u003cp\u003eComplete 1-5 spring set.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Grab This Set\u003c\/h4\u003e\n\n\u003cp\u003eThis is for anyone with the transmission apart doing synchro work, and for the builder who understands a rebuild is only as good as its weakest reused part. Springs are inexpensive, they're a known wear item, and they directly affect whether your new synchros engage the way they should. Check your transmission code, and if you're in there, put them in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Honda and Acura B16, B17, and B18 transmissions, see the table above. \u003cstrong\u003ePart numbers:\u003c\/strong\u003e SP101, SP103, SP105, SP107. \u003cstrong\u003eCoverage:\u003c\/strong\u003e complete 1-5 set. \u003cstrong\u003eImportant:\u003c\/strong\u003e select by transmission code, not by vehicle.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e1989 Acura Integra\u003cbr\u003e1990-1993 Acura Integra\u003cbr\u003e1994-2001 Acura Integra\u003cbr\u003e1999-2000 Honda Civic Si\u003cbr\u003e1994-1997 Honda Del Sol VTEC\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"Synchrotech Transmissions","offers":[{"title":"B16A\/B16B\/B17A\/B18C (Y80\/S80\/S4C\/S21\/Y21)","offer_id":47378437931042,"sku":"SYN-SP101","price":51.98,"currency_code":"USD","in_stock":false},{"title":"89-91 B Series Cable (S1\/Y1)","offer_id":47378437963810,"sku":"SYN-SP103","price":51.98,"currency_code":"USD","in_stock":false},{"title":"89-91 B Series Cable (Y2\/A1\/J1)","offer_id":47378437996578,"sku":"SYN-SP105","price":51.98,"currency_code":"USD","in_stock":false},{"title":"B18A\/B18B","offer_id":47378438029346,"sku":"SYN-SP107","price":51.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/synchrotech-b-series-synchro-s_ec3n.jpg?v=1788900972","url":"https:\/\/www.hybrid-racing.com\/products\/synchrotech-transmission-synchro-spring-set-b-series","provider":"Hybrid Racing","version":"1.0","type":"link"}