{"product_id":"main-shaft-ty856-6mt-3-636-2-375-ratio","title":"Main Shaft TY856 6MT 3.636 \/ 2.375 Ratio","description":"\u003cp\u003eMain shaft (aka input shaft) for 6-speed manual transmissions with trans ID codes starting with \"TY856\".  This is for standard ratio applications such as MY04-06 USDM STI and JDM STI.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eOptional REM ISF© (superfinishing) treatment.  ISF is a precisely controlled treatment that reduces surface roughness left from the machining processes thereby improving reliability, reducing friction, and all but eliminating break-in requirements and the resulting swarf.  Ideally, we recommend treating both contacting gears (drive \u0026amp; driven sides) for optimal results.  Adding ISF processing may increase ship time by as much as a week.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe main shaft may require replacement due to broken 1st, 2nd, or reverse gear teeth.  Other possible failures may include twisted input (clutch) splines, broken shaft, damage resulting from operation without a clutch pilot bearing in place, damage to the oil seal contact surface, bearing race damage due to lack of or poor quality lubrication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGear Ratio:\u003c\/strong\u003e 3.636 (1st) \/ 2.375 (2nd)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTooth Count: \u003c\/strong\u003e11 \/ 16\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Part No: \u003c\/strong\u003e32201AB070\u003c\/p\u003e","brand":"Subaru Genuine","offers":[{"title":"No","offer_id":45230764163126,"sku":null,"price":372.59,"currency_code":"USD","in_stock":true},{"title":"Yes (+$120)","offer_id":45230764228662,"sku":null,"price":492.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/5143\/3782\/files\/rstr1160c.jpg?v=1775168781","url":"https:\/\/www.rallispec.com\/products\/main-shaft-ty856-6mt-3-636-2-375-ratio","provider":"Rallispec","version":"1.0","type":"link"}