{"product_id":"wavetrac-high-friction-lsd-for-bmw-215k-axle-welded-ring-gear-r-2-35-2-81-f10-550i-e90-335d","title":"Wavetrac High Friction LSD for BMW 215K Axle, Welded Ring Gear, r=2.35-2.81: F10 550i, E90 335d","description":"\u003cp\u003eThe High Friction version of Wavetrac's diff for BMW's 215K rear axle with a 2.35 to 2.81 final drive, as under the F10 550i and E90 335d. Wavetrac tune a diff's bias ratio with plates of different friction; this is the High Friction build of the standard 30.309.172WK. The welded factory ring gear needs specialist machining first.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Friction version for the 215K axle, 2.35 to 2.81 final drive\u003c\/li\u003e\n\u003cli\u003eF10 550i and E90 335d\u003c\/li\u003e\n\u003cli\u003eThe welded ring gear needs specialist machining (not included)\u003c\/li\u003e\n\u003cli\u003eStandard version: 30.309.172WK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCheck before you order\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe factory ring gear is friction-welded to the open differential: it has to be split off, machined and threaded to take the Wavetrac and ARP bolts. Machining and bolts are not included.\u003c\/li\u003e\n\u003cli\u003eThe cars listed are a guide only: BMW fitted more than one axle size and final drive ratio to the same model. Confirm your axle size and ratio from the VIN or the axle's part number before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e30.309.272WK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eAutomatic torque-biasing limited slip differential (helical gear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGears\u003c\/th\u003e\n\u003ctd\u003e9310 alloy steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiff body\u003c\/th\u003e\n\u003ctd\u003eMachined from case-hardened steel billet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFasteners\u003c\/th\u003e\n\u003ctd\u003eARP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBias plates\u003c\/th\u003e\n\u003ctd\u003eCarbon fibre as standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAxle\u003c\/th\u003e\n\u003ctd\u003eBMW 215K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinal drive ratio\u003c\/th\u003e\n\u003ctd\u003e2.35 to 2.81\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eHigh Friction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"fitment-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e3-Series\u003c\/td\u003e\n\u003ctd\u003eE90 335d\u003c\/td\u003e\n\u003ctd\u003e2006-2013\u003c\/td\u003e\n\u003ctd\u003eRear axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e5-Series\u003c\/td\u003e\n\u003ctd\u003eF10 550i\u003c\/td\u003e\n\u003ctd\u003e2010-2017\u003c\/td\u003e\n\u003ctd\u003eRear axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Wavetrac","offers":[{"title":"Default Title","offer_id":57513720643964,"sku":"30.309.272WK","price":1524.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/wavetrac-30-309-272wk-wavetrac-high-friction-lsd-for-bmw-215k-axle-welded-ring-gea-1.png?v=1790680913","url":"https:\/\/fdracing.co.uk\/products\/wavetrac-high-friction-lsd-for-bmw-215k-axle-welded-ring-gear-r-2-35-2-81-f10-550i-e90-335d","provider":"FD Racing","version":"1.0","type":"link"}