{"product_id":"welded-ring-gear-machining-labor-install-kit-bmw-m3-m4-e-diff-replacement","title":"Welded Ring Gear Machining Labor + Install kit BMW M3\/M4 E-Diff Replacement","description":"\u003cp\u003eShop the Welded Ring Gear Machining Labor + Install kit BMW M3\/M4 E-Diff Replacement from Autotech. This differentials product is sourced from Autotech Sport Tuning for performance and replacement applications.\u003c\/p\u003e\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cdiv\u003eSome BMW models have the factory ring gear welded to the factory differential (aka center section). This kit includes labor to machine the ring gear and an ARP ring gear bolt kit. Your stock rear end would need to be sent to us for machining service. Please drain the gear oil and remove drive flanges before shipping. Once the ring gear is machined we install the Wavetrac differential (sold separately) into the rear end with proper backlash specifications.\u003cbr\u003e\n\u003cbr\u003e\nLead time for machining service 4 weeks.\u003cbr\u003e\n\u003cbr\u003e\nContents:\u003cbr\u003e\n\u003cbr\u003e\n1 x Labor to Machine OEM Welded Ring gear\u003cbr\u003e\n\u003cbr\u003e\n2 x OEM carrier bearings and races\u003cbr\u003e\n\u003cbr\u003e\n2 x OEM drive flange seals \u003cbr\u003e\n\u003cbr\u003e\n12 x ARP Ring Gear Bolt M14\u003cbr\u003e\n\u003cbr\u003e\nfor use with Wavetrac 30-309-160WK (welded OEM ring gear)\u003c\/div\u003e\u003ch2\u003eVehicle and Product Categories\u003c\/h2\u003e\u003cp\u003eWavetrac Differentials\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 30-309-360WK\u003c\/p\u003e\u003cp\u003e\u003cem\u003eVerify vehicle fitment and installation requirements before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Autotech","offers":[{"title":"Default Title","offer_id":46242248425557,"sku":"30-309-360WK","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/5040\/files\/F198645133.jpg?v=1790606134","url":"https:\/\/speedzone-web.com\/products\/welded-ring-gear-machining-labor-install-kit-bmw-m3-m4-e-diff-replacement","provider":"Speedzone Performance LLC","version":"1.0","type":"link"}