{"product_id":"wavetrac-helical-lsd-differential-bmw-335i-e9x-540i-e39-z8-e52-215k-axle-r281","title":"Wavetrac Helical LSD Differential - BMW 335i (E9X) \/ 540i (E39) \/ Z8 (E52) - 215K Axle R=2.81+","description":"\u003ch2\u003eWavetrac Differential, BMW Early E9X 335i All E39 540i (215K Axle w\/ Bolt On Ring Gear) R=2.81+\u003c\/h2\u003e\n\n\u003cp\u003eThe Wavetrac differential is the only torque-biasing differential on the market with patented cam technology that keeps drive going to the gripping wheel even under zero axle load conditions — the scenario where a conventional limited-slip or open differential simply gives up. Designed and manufactured by AutoTech Driveline, every Wavetrac unit is built from 9310 alloy steel gears housed in a case-hardened steel body, secured with ARP fasteners for lasting reliability on the street or track.\u003c\/p\u003e\n\n\u003cp\u003eThis listing covers the Wavetrac differential for the \u003cstrong\u003eBMW 215K axle\u003c\/strong\u003e with a bolted ring gear and ratio of R=2.81 and above. Compatible vehicles include the \u003cstrong\u003eE9X 335i\u003c\/strong\u003e (manual and automatic transmission, built before 03\/2007) as well as all \u003cstrong\u003eE39 540i\u003c\/strong\u003e and \u003cstrong\u003eE52 Z8\u003c\/strong\u003e models.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePatented cam device maintains internal load during zero axle load conditions — no wheelspin, no loss of drive\u003c\/li\u003e\n  \u003cli\u003eTorque-biasing helical gear design — no clutch packs to wear out or service\u003c\/li\u003e\n  \u003cli\u003e9310 alloy steel gears for superior strength under high load\u003c\/li\u003e\n  \u003cli\u003eCase-hardened steel differential body\u003c\/li\u003e\n  \u003cli\u003eARP fasteners throughout\u003c\/li\u003e\n  \u003cli\u003eSuits BMW 215K axle with bolt-on ring gear, ratio R=2.81 and above\u003c\/li\u003e\n  \u003cli\u003eRing gear torque spec: 115 Nm (85 ft-lb)\u003c\/li\u003e\n  \u003cli\u003eTransferable limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eVehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your vehicle's build date, transmission type, and axle configuration before ordering.\u003c\/p\u003e\n\n\u003cp\u003eNot sure if this differential suits your build? Contact our team at \u003ca href=\"mailto:sales@chicaneaustralia.com.au\"\u003esales@chicaneaustralia.com.au\u003c\/a\u003e for expert advice.\u003c\/p\u003e","brand":"Wavetrac","offers":[{"title":"Default Title","offer_id":52429336936741,"sku":"30.309.170WK","price":2199.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/WTC_BMW_30.309.170WK.webp?v=1779758512","url":"https:\/\/www.chicaneaustralia.com.au\/products\/wavetrac-helical-lsd-differential-bmw-335i-e9x-540i-e39-z8-e52-215k-axle-r281","provider":"Chicane Australia","version":"1.0","type":"link"}