{"product_id":"14-bolt-disc-brake-conversion-kit-srw","title":"14 Bolt Disc Brake Conversion Kit (SRW)","description":"\u003ch3\u003e14 Bolt Disc Brake Conversion Kit (SRW)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eReplace heavy drum brakes with a lighter, stronger, and more responsive disc brake setup.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit converts full float 14 Bolt single rear wheel (SRW) axles found in GM\/Chevy 3\/4- and 1-ton trucks (1973–1987) from drum to disc brakes. It includes brackets, rotors, calipers, pads, hoses, and hardware for a complete install. The setup eliminates the weight and complexity of drums, improves stopping power, and is often cheaper than a drum rebuild. It is designed for axles where the drum mounts behind the hub (non-slip-over). To confirm fitment, the measurement from the 4-bolt caliper bracket flange to the hub face should be ~4-11\/16\".\u003c\/p\u003e\n\u003cp\u003eThe kit requires 15\" steel wheels with max 4\" backspacing, or larger aluminum wheels. It will not work with dually hubs or semi-float axles. Studs must drop freely into the rotors (do not press fit), and at least 5\/8\" of lug nut engagement is required. A manual proportioning valve is recommended to balance front\/rear braking, and any residual valve in the system should be removed to prevent dragging. Re-bleed the system after installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eR1877\u003c\/li\u003e\n\u003cli\u003eFits full float 14 Bolt SRW axles (1973–1987 only)\u003c\/li\u003e\n\u003cli\u003eReplaces drums with lighter, stronger disc brakes\u003c\/li\u003e\n\u003cli\u003eRotor mounts behind hub (not for slip-over drums)\u003c\/li\u003e\n\u003cli\u003eRequires 15\" steel wheels (≤4\" backspacing) or larger aluminum wheels\u003c\/li\u003e\n\u003cli\u003eNot for dually hubs or semi-float axles\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKit Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 disc brake brackets with grade 8 bolts\u003c\/li\u003e\n\u003cli\u003e2 standard brake calipers (10mm banjo bolts)\u003c\/li\u003e\n\u003cli\u003e2 hydraulic hoses with banjo fittings (3\/8\"-24 inverted flare)\u003c\/li\u003e\n\u003cli\u003e2 weld-on brake line tabs\u003c\/li\u003e\n\u003cli\u003e2 brake line clips\u003c\/li\u003e\n\u003cli\u003e4 new brake pads\u003c\/li\u003e\n\u003cli\u003e2 new rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstyle\u003e\n  .rs-jump-btn { display: none; }\n\n  @media (max-width: 991px){\n    .rs-jump-btn{\n      display:inline-block; width:100%;\n      margin:16px 0; padding:12px 16px;\n      border-radius:30px; font-weight:bold; font-size:16px;\n      text-align:center; font-family: Arial, sans-serif; cursor:pointer;\n\n      background-color:#c8102e; \/* red bg *\/\n      color:#fff;               \/* white text *\/\n      border:2px solid #c8102e;\n      text-decoration:none;     \/* no underline *\/\n      box-shadow: 0 2px 4px rgba(0,0,0,0.15);\n      transition:background-color .3s, color .3s;\n    }\n    .rs-jump-btn:hover,\n    .rs-jump-btn:active{\n      background-color:#fff;    \/* invert on hover\/active *\/\n      color:#c8102e;\n      text-decoration:none;\n    }\n  }\n\u003c\/style\u003e\n\u003cp\u003e\u003ca href=\"#\" class=\"rs-jump-btn\"\u003e Start your selection \u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eNote\u003c\/h4\u003e\n\u003cp\u003eStuds must drop freely into rotors (do not press fit). Oversized studs may require drilling. Ensure at least 5\/8\" lug nut engagement. Re-bleed brakes after installation. Remove any residual valve to avoid rear brake drag. A manual proportioning valve is recommended to adjust bias. Will not fit dually hubs or semi-float axles.\u003c\/p\u003e","brand":"RuffStuff Specialties","offers":[{"title":"Yes \/ Yes","offer_id":47581726769290,"sku":"R1877-Kit-3","price":715.0,"currency_code":"USD","in_stock":false},{"title":"Yes \/ No","offer_id":47581726802058,"sku":"R1877-Kit-4","price":671.0,"currency_code":"USD","in_stock":false},{"title":"No \/ Yes","offer_id":47581726834826,"sku":"R1877-Kit-1","price":528.0,"currency_code":"USD","in_stock":false},{"title":"No \/ No","offer_id":47581726867594,"sku":"R1877-Kit-2","price":484.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/5548\/8394\/files\/R1877-14-bolt-disc-brake-conversion-kit-srw-image-12-ruffstuff-specialties.webp?v=1768616063","url":"https:\/\/pistontwistin.org\/products\/14-bolt-disc-brake-conversion-kit-srw","provider":"Piston Twistin LLC","version":"1.0","type":"link"}