{"product_id":"spool-performance-atc-13-stage-2-transfer-case-diy-kit","title":"Spool Performance ATC-13 Stage 2 Transfer Case DIY Kit","description":"\u003ch2\u003eSpool Performance ATC-13 Stage 2 Transfer Case DIY Kit\u003c\/h2\u003e\n\u003cp\u003eThe ATC-13 transfer case is a known weak point once you start pushing real power. The factory design simply isn’t built to handle sustained torque, aggressive launches, or high-load driving.\u003c\/p\u003e\n\u003cp\u003eThis kit fixes that—properly.\u003c\/p\u003e\n\u003cp\u003eAt the core of the upgrade is a fully redesigned billet hub machined from \u003cstrong\u003e4340 steel\u003c\/strong\u003e, then \u003cstrong\u003ecase hardened and nitrided\u003c\/strong\u003e to deliver exceptional surface hardness while maintaining core toughness. The \u003cstrong\u003emain spline engagement surface has been optimized\u003c\/strong\u003e, increasing contact stability and reducing wear under high torque conditions—addressing one of the most common OEM failure points.\u003c\/p\u003e\n\u003cp\u003eWe didn’t stop there.\u003c\/p\u003e\n\u003cp\u003eThe internal oiling system has been completely reworked with \u003cstrong\u003eCFD-optimized pathways\u003c\/strong\u003e, improving both \u003cstrong\u003elubrication and oil evacuation for cooling purposes\u003c\/strong\u003e. This allows for more consistent fluid distribution, reduced heat buildup, and improved durability during extended high-load operation—where the factory design typically falls short.\u003c\/p\u003e\n\u003cp\u003eClutch capacity is increased from \u003cstrong\u003e9 OEM frictions to 11\u003c\/strong\u003e, giving you a substantial jump in torque holding capability. The kit includes \u003cstrong\u003eupgraded steels\u003c\/strong\u003e and our in-house developed \u003cstrong\u003eFX-TRT high-coefficient friction material\u003c\/strong\u003e, specifically engineered for transfer case applications where heat, load, and consistency matter most.\u003c\/p\u003e\n\u003cp\u003eThe result is a transfer case that holds more power, runs cooler, and maintains consistent performance when it actually matters.\u003c\/p\u003e\n\u003cp\u003eAnd like everything we build—this kit is designed for \u003cstrong\u003estraightforward, plug-and-play installation\u003c\/strong\u003e with no unnecessary complications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4340 billet steel hub, case hardened and nitrided for maximum strength and durability\u003c\/li\u003e\n\u003cli\u003eOptimized main spline engagement surface for improved load distribution and reduced wear\u003c\/li\u003e\n\u003cli\u003eCFD-optimized 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