Dorman OE Solutions Control Arm - 521-678 Part #: 521-678 Line: DOR Dorman OE Solutions Control Arm Limited Lifetime Warranty Adjustable: No Hardware Included: Yes Ball Joint Included: Yes Bushings Included: Yes Dust Boot Included: Yes Grease Fitting Included: Yes Greaseable: Yes Ball Joint Stud Type: Threaded Bushing Material: Rubber Pre-Greased: Yes Number Of Mounting Holes: 2 Bushing Color: Black Castle Nut Included: Yes Cotter Pin Included: No Dust Boot Color: Black Ball Joint Attachment Method: Machined Locking Nut Included: Yes Control Arm Material: Aluminum Control Arm Color: Black Ball Stud Thread Size: M12 Show More Show Less