{"product_id":"big-bore-xd®-cylinder-assist®-steering-kit-jeep-wrangler-jk-3-6l-2012-2018","title":"Big Bore Xd® Cylinder Assist® Steering Kit – Jeep Wrangler Jk 3.6l (2012-2018)","description":"\u003csection class=\"shopify-section section\" id=\"shopify-section-template--17665205895273__main\"\u003e\n\u003cdiv class=\"page-width\"\u003e\n\u003cdiv class=\"product product--small product--left product--stacked product--mobile-hide grid grid--1-col grid--2-col-tablet\"\u003e\n\u003cdiv class=\"product__info-wrapper grid__item product__info-wrapper--extra-padding scroll-trigger animate--slide-in\"\u003e\n\u003csection class=\"product__info-container product__column-sticky\" id=\"ProductInfo-template--17665205895273__main\"\u003e\n\u003cdiv class=\"product__description rte quick-add-hidden\"\u003e\n\u003cp\u003eRunning lockers, big axles, and 40s on your JK? Your factory steering isn’t going to cut it. PSC’s BIG BORE XD Cylinder Assist Steering Kit is the ultimate upgrade for Jeep JK\/JKU owners who demand serious steering performance. Designed for rigs with locking differentials, aftermarket axles, and tires up to 44\", this kit delivers the torque and control you need on the toughest trails.\u003c\/p\u003e\n\u003cp\u003eThis complete system includes our BIG BORE XD Steering Gear, a high-performance pump kit with remote reservoir, a Cylinder Assist kit, and all the hardware you need for a clean install. Say goodbye to steering play, pump overheating, and white-knuckle turns when your lockers are engaged.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHeads‑up for installers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor supercharged vehicles, call PSC for a custom pump kit.\u003c\/li\u003e\n\u003cli\u003eUse HWK-688-PP hardware kit when installing with a Synergy MFG Track Bar and Sector Shaft Brace.\u003c\/li\u003e\n\u003cli\u003eSome aftermarket track bars may not clear the BIG BORE XD gear—check before install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended tools:\u003c\/strong\u003e\u003cbr\u003e46MM Pitman Arm Nut Socket\u003cbr\u003ePitman Arm Puller\u003cbr\u003eTie Rod End Puller\u003cbr\u003eAxle Caster Gauge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"accordion__title inline-richtext h4\"\u003e\u003cstrong\u003eWhat’s included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOX 1:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eSG688R:\u003cspan\u003e \u003c\/span\u003eBIG BORE XD Steering Gear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOX 2:\u003c\/strong\u003e\u003cspan\u003e PK36JP1:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eComplete Pump Kit (Reservoir, Fluid Cooler, Anti-Splash Valve, Serpentine Belt, Brackets, Hoses, Fittings, 4 QTS PSC 715 Fluid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOX 3:\u003c\/strong\u003e\u003cspan\u003e CAK688R-6.75W:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eCylinder Assist Kit (Assist Cylinder, Rod Ends, Hardware, Hose Kit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOX 4:\u003c\/strong\u003e\u003cspan\u003e TRCL1.375\u003c\/span\u003e: Tie Rod Clamp (1.25\" ID)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"accordion__title inline-richtext h4\"\u003e\u003cstrong\u003eInstallation Video\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003ciframe width=\"640\" 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