{"product_id":"dorman-630-157-4wd-disconnect-gear","title":"Dorman 630-157 4WD Disconnect Gear","description":"\u003ch2\u003eOE FIX 4WD Disconnect Gear for Ram\u003c\/h2\u003e\u003cp\u003eDorman 630-157 is a direct replacement 4WD disconnect gear for select Ram front differential applications. It restores front differential function without requiring a complete differential assembly or salvage-yard sourcing, making it a practical repair for a failed disconnect gear on a 2021 Ram 1500 Classic with Dana axle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement 4WD disconnect gear for front differential repair\u003c\/li\u003e\n\u003cli\u003eOE FIX solution for select Ram 1500 Classic applications\u003c\/li\u003e\n\u003cli\u003e16-spline design\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 72.6 mm\u003c\/li\u003e\n\u003cli\u003eOverall width: 33 mm\u003c\/li\u003e\n\u003cli\u003eShift fork groove diameter: 61.0 mm\u003c\/li\u003e\n\u003cli\u003eShift fork groove width: 11.5 mm\u003c\/li\u003e\n\u003cli\u003ePackage contents: 4WD collar\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Information\u003c\/h2\u003e\u003cp\u003eThis Dorman 630-157 disconnect gear is engineered to replace the failed gear used in the front differential on a 2021 Ram 1500 Classic, w\/Dana Axle. The original disconnect gear is not offered as a separate service part, so this OE FIX component gives technicians and owners a focused repair path instead of replacing the entire differential assembly. It also provides a cleaner alternative to used parts when servicing a Ram 1500 Classic front axle issue.\u003c\/p\u003e\u003cp\u003eKey dimensions include a 16-spline configuration, 72.6 mm overall diameter, 33 mm overall width, 61.0 mm shift fork groove diameter, and 11.5 mm shift fork groove width. Dorman 630-157 cross-references 68257421AG for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Part Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFront differential disconnect gear failure\u003c\/li\u003e\n\u003cli\u003eLoss of 4WD engagement at the front axle\u003c\/li\u003e\n\u003cli\u003eWear or damage to the original disconnect gear\u003c\/li\u003e\n\u003cli\u003eNeed to replace a non-serviceable OE gear without buying a complete differential\u003c\/li\u003e\n\u003cli\u003eRepair needs on a 2021 Ram 1500 Classic, w\/Dana Axle\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify axle type and match the listed dimensions before installation. This part is intended for the front differential disconnect assembly on the confirmed Ram application, so compare the spline count, groove diameter, groove width, and overall measurements to the original component before reassembly. Proper differential service procedures and final function checks are recommended after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman OE FIX parts are built to replace serviceable components that are not offered individually by the original equipment manufacturer. This approach supports a targeted repair for the front differential on Ram 1500 Classic applications while maintaining OE-style fitment requirements.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52778788552885,"sku":"BKKY-630-157","price":133.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_630157_Fro.jpg?v=1783580382","url":"https:\/\/www.partcatalog.com\/products\/dorman-630-157-4wd-disconnect-gear","provider":"PartCatalog","version":"1.0","type":"link"}