{"product_id":"nissan-r200-differential-4140-chromoly-billet-full-spool-centre","title":"Speed Tek Auto Racing Nissan R200 Diff 4140 Chromoly Billet Full Spool Center","description":"\u003cp\u003eOur spools are meticulously crafted from 4140 chromoly billet material and machined to precise tolerances to keep your wheels locked at all times. These are ideal for drag or drift applications where equal torque must be applied to both rear wheels to optimize acceleration potential.\u003c\/p\u003e\n\u003cp\u003eUnlike standard or mechanical LSDs, which can fail or crack under the stress of motorsport applications, our spools offer superior durability.\u003c\/p\u003e\n\u003cp\u003eWeighing in at under 5 kg, these units offer significant performance benefits. Reduced weight means less power is required to rotate the mass, resulting in faster times at the strip and reduced wear on the drivetrain.\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eThese are made to suit \u003cem\u003eALL\u003c\/em\u003e Nissan Skyline \u0026amp; Silvia R200 differential variants.\u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"text-decoration: Underline;\"\u003e29 spline, 30 spline, and 31 spline. \u003c\/span\u003e \u003cem\u003e(Please verify which type you have) \u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003eAfter manufacturing, the spools are sent out for a nitriding\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e treatment.\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce\u003e\u003cb data-mce-fragment=\"1\"\u003eWhat is nitriding?\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\"\u003e A \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003eheat-treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-carbon, low-alloy steels. They are also used on medium-carbon, high-carbon, titanium, aluminum, and molybdenum steels.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eDesigned and machined by Speedtek Auto Racing.\u003cbr\u003e\u003cbr\u003e\u003cem\u003e\u003cspan\u003e\u003cstrong\u003eWe now offer Isotropic Superfinishing on all Speedtek products.\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e(This process adds time to the shipping of the kit; please email us if you have any questions)\u003cbr\u003e\u003cbr\u003eSuperfinishing is a metalworking process that improves the surface finish and geometry of a workpiece. It is achieved by removing only the thin, amorphous surface layer left by the final process that used abrasive stones to grind gears or other parts. This layer is typically about 1 μm in size. Unlike polishing, which produces a mirror finish, superfinishing creates a cross-hatch pattern on the workpiece.\u003cbr\u003e\u003cbr\u003eBenefits of superfinishing include extended part life, reduced wear, tighter tolerances, improved load-bearing surfaces, and enhanced sealing capabilities. \u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Speedtek Auto Racing","offers":[{"title":"29Spline \/ No","offer_id":41431046291511,"sku":"R200Spool-29","price":2081.0,"currency_code":"CAD","in_stock":true},{"title":"29Spline \/ Yes","offer_id":41431046324279,"sku":"R200Spool-29-ISF","price":2207.0,"currency_code":"CAD","in_stock":true},{"title":"30Spline \/ No","offer_id":41431046357047,"sku":"R200Spool-30","price":2081.0,"currency_code":"CAD","in_stock":true},{"title":"30Spline \/ Yes","offer_id":41431046389815,"sku":"R200Spool-30-ISF","price":2207.0,"currency_code":"CAD","in_stock":true},{"title":"31Spline \/ No","offer_id":41431046422583,"sku":"R200Spool-31","price":2197.0,"currency_code":"CAD","in_stock":true},{"title":"31Spline \/ Yes","offer_id":41431046455351,"sku":"R200Spool-31-ISF","price":2312.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7502\/9815\/files\/image_4bdb543b-dcff-47f1-b2da-cc3065de87a9.jpg?v=1736180530","url":"https:\/\/fivesquareusa.com\/en-ca\/products\/nissan-r200-differential-4140-chromoly-billet-full-spool-centre","provider":"Shaft Shop","version":"1.0","type":"link"}