{"product_id":"dorman-999-666-transmission-crossmember","title":"Dorman 999-666 Transmission Crossmember","description":"\u003ch2\u003eTransmission Crossmember for Jeep Grand Cherokee\u003c\/h2\u003e\u003cp\u003eThis Dorman transmission crossmember restores the support structure between the frame and transmission on compatible Jeep Grand Cherokee applications. Built as a standard replacement steel assembly, it helps address driveline movement caused by a rusted or weakened original crossmember.\u003c\/p\u003e\u003cp\u003eFits 1999-2004 Jeep Grand Cherokee, N\/A. Part number 999-666 is a direct-fit, bolt-in replacement for specific applications and is made to retain the existing frame while renewing transmission support.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel construction for frame and transmission support\u003c\/li\u003e\n\u003cli\u003eBolt-in design for specific vehicle fitment\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade for OE-style service\u003c\/li\u003e\n\u003cli\u003eFrame width: 41.5 in.\u003c\/li\u003e\n\u003cli\u003eLength: 41.5 in.; width: 6.25 in.; height: 3.8 in.\u003c\/li\u003e\n\u003cli\u003eMounting hole quantity: 8; mounting hole diameter: 12.2 mm\u003c\/li\u003e\n\u003cli\u003eEngine mounts included: No\u003c\/li\u003e\n\u003cli\u003eTransmission mounts included: No\u003c\/li\u003e\n\u003cli\u003eMounting hardware included: No\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDorman 999-666 is a transmission crossmember assembly for 1999-2004 Jeep Grand Cherokee models. It is engineered as a standard replacement steel frame component that supports the transmission and helps restore proper driveline alignment when the original crossmember has corrosion or structural wear. This part cross-references Monroe Shocks \u0026amp; Struts (e.g., 52058940, 52058940AB) for the same application.\u003c\/p\u003e\u003cp\u003eUse this transmission crossmember when the factory support has deteriorated and the vehicle needs a direct replacement that retains the existing frame. The bolt-in configuration and specific fitment make it a practical service part for Jeep Grand Cherokee repair work. Part number 999-666 is listed for 1999, 2000, 2001, 2002, 2003, and 2004 Jeep Grand Cherokee applications.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Fix\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcess transmission movement caused by a rusted crossmember\u003c\/li\u003e\n\u003cli\u003eDriveline vibration related to weakened support structure\u003c\/li\u003e\n\u003cli\u003eMisalignment from a damaged or corroded original crossmember\u003c\/li\u003e\n\u003cli\u003eLoss of structural support at the transmission mounting area\u003c\/li\u003e\n\u003cli\u003eVehicle downtime when the frame can be retained and the support replaced\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s year, model, and existing crossmember dimensions before installation. This is a bolt-in, specific-fit assembly, so confirm mounting hole location and frame width match the application. Inspect surrounding frame areas for corrosion or damage before installing the new crossmember.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDorman manufactures replacement frame and chassis components for service applications, and this transmission crossmember is built as a standard replacement steel assembly for the listed Jeep Grand Cherokee fitment.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52808223883445,"sku":"BKKY-999-666","price":255.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_999666_FRO.jpg?v=1784184886","url":"https:\/\/www.partcatalog.com\/products\/dorman-999-666-transmission-crossmember","provider":"PartCatalog","version":"1.0","type":"link"}