{"product_id":"mas-chassis-b5320-suspension-ball-joint-front-upper","title":"MAS Chassis B5320 Suspension Ball Joint - Front Upper","description":"\u003ch2\u003eSuspension Ball Joint Overview\u003c\/h2\u003e\u003cp\u003eMAS Chassis B5320 is a steel suspension ball joint built as a direct replacement for specific front upper applications. It is precision-engineered and rigorously tested to match the original equipment function on supported vehicles.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSteel construction with a rubber dust boot for durable service protection.\u003c\/li\u003e\n\u003cli\u003eGreaseable design with a zerk fitting for routine lubrication.\u003c\/li\u003e\n\u003cli\u003eBolt-on mounting with four mounting holes for secure attachment.\u003c\/li\u003e\n\u003cli\u003eIncludes a castle nut, cotter pin, bolts, and nuts for the listed application.\u003c\/li\u003e\n\u003cli\u003eStandard suspension grade with a tapered stud and metal bearing material.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThis MAS Chassis ball joint, part number B5320, is made for front upper suspension service on a range of Chevrolet, GMC, Oldsmobile, and Isuzu models. It is a fitment-based replacement for the Chevrolet S10, GMC Sonoma, and Chevrolet Blazer, along with related applications such as the GMC Jimmy and Oldsmobile Bravada. The greaseable design supports regular maintenance, while the steel body, rubber boot, and tapered stud help maintain consistent suspension articulation. This part cross-references MOOG Chassis Products K5320 and Mevotech Supreme MK5320 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Replacement Uses\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestoring worn suspension joint movement and steering response.\u003c\/li\u003e\n\u003cli\u003eAddressing looseness or play in the front upper suspension.\u003c\/li\u003e\n\u003cli\u003eReplacing a damaged dust boot or compromised joint housing.\u003c\/li\u003e\n\u003cli\u003eCorrecting noise or clunking caused by joint wear.\u003c\/li\u003e\n\u003cli\u003eServicing a greaseable joint that no longer holds lubrication properly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the vehicle year, make, model, and front upper position before ordering. The bolt-on design uses the specified mounting pattern and tapered stud, so the existing suspension layout must match the listed application. After installation, grease the joint through the zerk fitting according to service requirements and verify proper cotter pin engagement.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eMAS Chassis states that this ball joint is precision-engineered and rigorously tested for reliable replacement performance on the specified vehicles.\u003c\/p\u003e","brand":"MAS Chassis","offers":[{"title":"Default Title","offer_id":53725671325877,"sku":"DGKF-B5320","price":37.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/MS_B5320_Fro.jpg?v=1794206385","url":"https:\/\/www.partcatalog.com\/products\/mas-chassis-b5320-suspension-ball-joint-front-upper","provider":"PartCatalog","version":"1.0","type":"link"}