{"product_id":"88-98-chevy-gmc-obs-c1500-bolt-in-rear-frame-c-notch-kit","title":"88-98 Chevy GMC OBS \u0026 C1500 Bolt-In Rear Frame C-Notch Kit","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cb\u003e88-98 Frame C-Notch Kit - #135-4005\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eModernize your \u003cb\u003e1988-1998 Chevy \u0026amp; GMC C1500 (OBS)\u003c\/b\u003e with the most robust bolt-on C-notch kit on the market. Engineered with the builder in mind, this kit provides the necessary axle clearance for lowered stances while \u003cstrong\u003esignificantly reinforcing the factory frame rails\u003c\/strong\u003e. Precision-manufactured for the \u003cb\u003eGMT400 platform\u003c\/b\u003e, this kit ensures a professional-grade foundation for trucks lowered more than 4 inches, \u003cstrong\u003epreventing harsh axle-to-frame contact\u003c\/strong\u003e without the need for a welder.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eThe GSI Advantage\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e100% Bolt-In Solution:\u003c\/b\u003e Designed for ease of installation, this kit eliminates the need for extensive fabrication. It’s a straightforward process that can be completed with basic shop tools, making it the ideal choice for a one-person install.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaximum Reinforcement:\u003c\/b\u003e Measuring an impressive \u003cb\u003e25.5\" in length\u003c\/b\u003e, our notches distribute stress loads across a much larger surface area than standard kits. This added length significantly increases frame rigidity and strength.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePremium Corrosion Resistance:\u003c\/b\u003e To guarantee long-term durability and a show-quality look, every notch comes finished in a \u003cb\u003esemi-gloss black powder coat\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Metal Template:\u003c\/b\u003e We include a heavy-duty metal installation template to ensure perfect alignment and cutting. This removes the guesswork, ensuring your notches are positioned exactly where they need to be for maximum travel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eDesign \u0026amp; Construction\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e 42 lbs \u003cem\u003e(Total Kit)\u003c\/em\u003e \/ 21 lbs \u003cem\u003e(Per Notch)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDimensions:\u003c\/b\u003e 25.5\" x 3.5\" x 5.25\" \u003cem\u003e(Per Notch)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1\/4\" ASTM A1011 Hot-Rolled Steel: \u003c\/strong\u003eLaser-cut and precision-formed for a strong, accurate fit over the factory GMT400 frame rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOverbuilt Hardware:\u003c\/b\u003e Includes (32) 1\/2\"-13 Grade-8 hex bolts for a secure, permanent, and vibration-free fit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFinish:\u003c\/b\u003e Semi-gloss black powder coat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eMeasurement \u0026amp; Fitment Guide\u003c\/h4\u003e\n\u003cp\u003eThis kit is engineered specifically for the \u003cb\u003e88-98 C1500 \u003cem\u003e(GMT400)\u003c\/em\u003e\u003c\/b\u003e frame. Proper fitment is critical for maintaining suspension geometry and safety.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhen to use this kit:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRear Drops:\u003c\/b\u003e Required for rear drops of 4\" or greater to maintain proper suspension travel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eOBS Builders:\u003c\/b\u003e Specifically contoured for the 1988-1998 Chevy\/GMC C1500 frame rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Performance Use:\u003c\/b\u003e The 25.5\" extended design makes this ideal for high-horsepower or heavy-use street trucks that require extra frame support.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eVehicle Applications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1988-1998 Chevy C1500 \u003cem\u003e(2WD)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1988-1998 GMC C1500 \u003cem\u003e(2WD)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ci\u003eFits \"OBS\" \/ GMT400 Platform Regular Cab, Extended Cab, and Crew Cab models.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eWhat’s Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(2)\u003c\/strong\u003e Driver \u0026amp; Passenger Side C-Notches (25-1\/2\" Long)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(1) \u003c\/strong\u003ePrecision Metal Template\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(32)\u003c\/strong\u003e 1\/2-13 Grade-8 Hex Bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(32)\u003c\/strong\u003e 1\/2-13 Grade-8 Lock Nuts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(64)\u003c\/strong\u003e Grade-8 Flat Washers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eQuestions? Contact Us\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e(480) 940 1806 – \u003cstrong\u003eLocal\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 (877) 951-1890 – \u003cstrong\u003eToll Free\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GSI Machine and Fabrication","offers":[{"title":"Default Title","offer_id":50499626500156,"sku":"135-4005","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5934\/4956\/files\/GSI_88-98_Chevy_GMC_C-Notch_Kit.jpg?v=1790048185","url":"https:\/\/rpm-racing.com\/products\/88-98-chevy-gmc-obs-c1500-bolt-in-rear-frame-c-notch-kit","provider":"Racing Precision Motorsports","version":"1.0","type":"link"}