{"product_id":"r1017-b","title":"Eaton HO52\/72 Disc Brake Conversion Bracket Pair","description":"\u003ch3\u003eEaton HO52\/72 Disc Brake Conversion Bracket\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMounting brackets for disc conversion on '65–'72 Eaton axles\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese brackets are based on our 14 Bolt design, which also fits the Eaton HO52\/72 single rear axles used from 1965 to 1972. They’re built from 3\/8\" plate steel and eliminate the need for spacers, reducing both complexity and weight. These are designed to work with standard 1973–1987 Chevy 3\/4-ton front calipers and rotors, with no extra mounting hardware required.\u003c\/p\u003e\n\u003cp\u003eBrackets install directly and are intended for use with single steel 15\" wheels with a maximum 4\" backspacing. Axles older than 1971 may require stud replacement or drilling to fit the rotors properly. Use with our GM or El Dorado calipers and verify stud fitment before final assembly to ensure proper engagement and rotor seating.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: PN1017\u003c\/li\u003e\n\u003cli\u003eSold as a pair\u003c\/li\u003e\n\u003cli\u003eFits Eaton HO52\/72 single rear axles (1965–1972)\u003c\/li\u003e\n\u003cli\u003eDesigned to work with 1973–1987 3\/4-ton Chevy calipers and rotors\u003c\/li\u003e\n\u003cli\u003eNo spacers required; direct mount design\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick steel for strength and rigidity\u003c\/li\u003e\n\u003cli\u003eRequires 15\" steel wheels with max 4\" backspacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatible Components\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eGM Dual Bleeder Loaded Brake Caliper\u003c\/li\u003e\n\u003cli\u003eCadillac El Dorado Caliper Set with Parking Brake Lever\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNAPA Part Numbers (’73–’87 Chevy 3\/4 Ton Front, 4x4)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCalipers (Late): LH – N4674, RH – N4673\u003c\/li\u003e\n\u003cli\u003eCalipers (Early): LH – N4597, RH – N4596\u003c\/li\u003e\n\u003cli\u003eRotor: 4885677 (all years)\u003c\/li\u003e\n\u003cli\u003eBrake Line: H86572\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eNote\u003c\/h4\u003e\n\u003cp\u003eThese brackets are not compatible with axles using slip-on drums. Hubs from 1970 and older may require drilling or replacement to fit 1971–1998 studs. Always check stud diameter and make sure studs drop freely into the rotor—do not press them in. Ensure at least 5\/8\" of lug nut thread engagement once the wheel is installed.\u003c\/p\u003e\n\u003cp\u003eThis setup requires steel wheels with a maximum of 4\" backspacing. Use a proportioning valve to properly balance front and rear brake bias, and always re-bleed your brakes after installation. Improper stud fitment or failure to address backspacing can result in unsafe brake operation.\u003c\/p\u003e","brand":"Riley Mountain Motorsports","offers":[{"title":"Default Title","offer_id":48363506073757,"sku":"PN1017-B-Kit-1","price":64.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/1989\/0333\/files\/R1017-eaton-ho52-72-disc-brake-conversion-bracket-pair-ruffstuff-specialties-2.webp?v=1780419729","url":"https:\/\/rileymountainmotorsports.com\/products\/r1017-b","provider":"Riley mountain motorsports","version":"1.0","type":"link"}