{"product_id":"mfactory-b-series-mainshaft-countershaft-brace-cuff","title":"MFactory B Series Transmission Shaft Brace Cuff for B16\/B18","description":"\u003cul\u003e\n\u003cli\u003eRemoves 5th Gear \u003c\/li\u003e\n\u003cli\u003eLocks Shafts Against Radial Load \u003c\/li\u003e\n\u003cli\u003eFor Drag and Race Builds Only \u003c\/li\u003e\n\u003cli\u003eInstalls it While the Case is Open \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\u003eMFactory Infinitude Shaft Brace Cuff (MFT-INF-TRS-13B) - B-Series\u003c\/h3\u003e\n\n\u003cp\u003eAt serious power levels, the problem stops being the gears themselves and becomes the shafts they're mounted on. Heavily loaded gears create radial loads that push the shafts apart, and once that starts happening you get gear alignment problems, accelerated wear, and eventually failure. This MFactory shaft brace locks the shafts together so they can't separate, while still letting them spin freely as designed.\u003c\/p\u003e\n\n\u003ch4\u003eRead This First: It Replaces Fifth Gear\u003c\/h4\u003e\n\n\u003cp\u003eThe most important thing on this page. The shaft brace mounts in the position fifth gear occupies, which means \u003cstrong\u003eyou lose fifth\u003c\/strong\u003e. Reverse is retained, so you can still back the car off a trailer or out of a pit box.\u003c\/p\u003e\n\n\u003cp\u003eLosing fifth isn't a drawback, it's the design. The end of the shaft is the only place you can brace them effectively, and fifth gear is what's there. Trading it for shaft support is the deliberate choice you're making.\u003c\/p\u003e\n\n\u003cp\u003eSo this is for a car where losing fifth doesn't matter. Drag cars, dedicated race builds, and anything that never sees a highway. If your B-series still gets driven on the road, this isn't the right part regardless of how much power you're making.\u003c\/p\u003e\n\n\u003ch4\u003eWhat Radial Load Actually Does\u003c\/h4\u003e\n\n\u003cp\u003eWorth understanding, because it explains why this exists.\u003c\/p\u003e\n\n\u003cp\u003eWhen gears transmit torque, they push against each other. That force acts to separate the shafts they're mounted on, and it scales with how much power you're putting through them.\u003c\/p\u003e\n\n\u003cp\u003eAt stock power, the case and bearings handle it fine. At high power, the shafts deflect enough that gears no longer mesh at the angle they were designed to. Tooth contact shifts to the edge instead of across the full face, load concentrates where it shouldn't, and gears start failing in ways they wouldn't at lower output.\u003c\/p\u003e\n\n\u003cp\u003eThe brace ties the shafts together at their ends so they can't move apart. Gears stay meshed properly, contact stays where it should, and the transmission survives loads that would otherwise be tearing it apart.\u003c\/p\u003e\n\n\u003ch4\u003ePairs With A Gear Set\u003c\/h4\u003e\n\n\u003cp\u003eThis makes the most sense alongside a 1-4 gear set, and the timing is why.\u003c\/p\u003e\n\n\u003cp\u003eSynchrotech's Pro Series 1-4 sets cover first through fourth and let you either reuse your factory fifth gears or replace them with this brace. If you're already installing gears, the transmission is fully apart and fitting the brace costs you nothing in additional labor.\u003c\/p\u003e\n\n\u003cp\u003eDoing it later means splitting the case again, which is the expensive part of any transmission job. If a brace is anywhere in your plans, do it while you're in there.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e1992-2001 B-series transmissions, including:\u003c\/p\u003e\n\n\u003cp\u003eAcura Integra LS\u003cbr\u003eAcura Integra GS-R\u003cbr\u003eAcura Integra Type R\u003cbr\u003eJDM Integra XSi and RSi\u003cbr\u003eB16 hydro\u003cbr\u003e1999-2000 Honda Civic Si\u003c\/p\u003e\n\n\u003cp\u003ePart number MFT-INF-TRS-13B.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Run This\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the drag or competition B-series build where power has outgrown what the shafts can handle without help, and where fifth gear was never getting used anyway. It's a part for a specific kind of car, and on that car it's what keeps an expensive transmission together. Be certain you don't need fifth, fit it while the case is already open, and stop worrying about shaft deflection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 1992-2001 B-series transmissions (Integra LS, GS-R, Type R, JDM XSi and RSi, B16 hydro, 99-00 Civic Si). \u003cstrong\u003ePart number:\u003c\/strong\u003e MFT-INF-TRS-13B. \u003cstrong\u003eFunction:\u003c\/strong\u003e locks transmission shafts together to counteract radial load from heavily loaded gears. \u003cstrong\u003eImportant:\u003c\/strong\u003e replaces fifth gear, transmission becomes a four-speed. Reverse is retained.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e1992-1993 Acura Integra GS\/LS\/RS\u003cbr\u003e1992-1993 Acura Integra GS-R\u003cbr\u003e1994-2001 Acura Integra GS\/LS\/RS\u003cbr\u003e1994-2001 Acura Integra GS-R\u003cbr\u003e1997-2001 Acura Integra Type R\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":"MFactory","offers":[{"title":"Default Title","offer_id":47459323215906,"sku":"MFT-INF-TRS-13B","price":229.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/MFT-INF-TRS-13B_f10z.jpg?v=1788987188","url":"https:\/\/www.hybrid-racing.com\/products\/mfactory-b-series-mainshaft-countershaft-brace-cuff","provider":"Hybrid Racing","version":"1.0","type":"link"}