{"product_id":"allstar-performance-metric-weld-on-caliper-bracket-for-3-inch-axles-1-4-inch-steel-fits-gm-calipers-11-75-inch-rotors","title":"Allstar Performance metric weld-on caliper bracket for 3-inch axles — 1\/4-inch steel, fits GM calipers \u0026 11.75-inch rotors","description":"\u003cp\u003e\u003cstrong\u003eThe Allstar Performance ALL42102 is a heavy-duty, weld-on rear caliper bracket engineered to mount GM metric calipers on 3\" diameter axle housings.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt from 1\/4\" steel and finished in a natural bare-metal state, this bracket lets you attach 11.75\" diameter rotors and OE-style GM metric calipers to custom or restored rear axle assemblies. Its weld-on construction provides a rigid, permanent mounting point designed for high-strength applications where precise caliper positioning and long-term durability are important. The bracket ships individually and is sized to match 3\" outside diameter axle tubes common in many performance and restoration builds.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this bracket fit on a 3\" axle tube?\u003c\/h3\u003e\n\u003cp\u003eThe bracket is contoured to wrap and weld directly to axle housings that measure 3\" outside diameter. Proper fit requires careful alignment and full-penetration tack welding around the tube to ensure a steady, load-bearing joint. After welding, grinding and paint or coating are recommended to protect bare steel from corrosion.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 3\" OD axle housings for a snug weld-on installation\u003c\/li\u003e\n  \u003cli\u003eFull-contact flange shape to maximize weld area and strength\u003c\/li\u003e\n  \u003cli\u003eSupplied as a single bracket; requires positioning and welding by a qualified fabricator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it work with my brake rotors and GM metric calipers?\u003c\/h3\u003e\n\u003cp\u003eThis bracket is intended for use with rotors up to 11.75\" in diameter and GM metric calipers, providing the correct offset and mounting pattern for those components. Verify rotor thickness and caliper piston location to ensure there’s adequate clearance and pad fitment. Minor adjustments during mock-up are common when combining aftermarket parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with 11.75\" diameter rotors as specified\u003c\/li\u003e\n  \u003cli\u003eMatches GM metric caliper bolt patterns and mounting positions\u003c\/li\u003e\n  \u003cli\u003eCheck rotor width and hub geometry before final installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and dimensions should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe bracket is formed from 1\/4\" thick steel for a robust, durable mounting point and it is supplied in a natural, uncoated finish. Package dimensions reflect the shipped item size, and the bracket’s shape is optimized for strength where the caliper mounts and where it meets the axle tube. Finish preparation after welding will extend longevity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed from 1\/4\" (0.25\") thick steel for structural rigidity\u003c\/li\u003e\n  \u003cli\u003eNatural bare-steel finish, ready for primer, paint, or coating\u003c\/li\u003e\n  \u003cli\u003ePackage dimensions: approximately 26.9 x 19.6 x 0.5 cm for shipping reference\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I prepare and install the weld-on bracket safely?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires basic fabrication skills: fitting, tack-welding, checking alignment, finish-welding, and then protecting the finished welds. Use proper welding equipment and safety gear, and perform brake component mock-up with hub and rotor in place to confirm caliper centering. If you’re not experienced with axle welding, consider a professional welder or shop to ensure safe, reliable results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTack-weld to verify caliper alignment before full welds\u003c\/li\u003e\n  \u003cli\u003eUse full-penetration welds and grind smooth as needed\u003c\/li\u003e\n  \u003cli\u003eCoat or paint welded areas to prevent corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Allstar Performance ALL42102 weld-on caliper bracket is aimed at builders, restorers, and race teams installing GM metric calipers on custom or rebuilt 3\" axle housings. It suits anyone needing a strong, permanent caliper mount for 11.75\" rotors—from hot-rods and street\/strip projects to competition vehicles—provided installation is performed by someone familiar with axle welding and brake system setup.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this bracket fit 3\" axle tubes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the ALL42102 is shaped specifically for 3\" outside diameter axle housings and is intended for weld-on installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which calipers and rotor sizes are compatible?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It is designed for GM metric calipers and works with rotors up to 11.75\" diameter; verify clearances before final install.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Allstar Performance","offers":[{"title":"Default Title","offer_id":48084377174174,"sku":"B003C01BCQ","price":32.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/allstar-performance-all42102-front-profile-bracket.jpg?v=1785852418","url":"https:\/\/northtrailauto.ca\/products\/allstar-performance-metric-weld-on-caliper-bracket-for-3-inch-axles-1-4-inch-steel-fits-gm-calipers-11-75-inch-rotors","provider":"North Trail Auto","version":"1.0","type":"link"}