Ball joints

Greetings,Mate. Went on the Summit website.Came up with a better price on lowers. Check out part numbers:AMGK7023,AMGK7021.Cheapest lowers,I could identify.The upper ball joints by application,all fit B /F bodies.IIRC,a larger ball joint.Kilo ,for the cost to ship,and duty taxes,I would use the toll free 1-800-230-3030 number.