In automotive suspension, a control arm, also known as an A-arm, is a hinged suspension link between the chassis and the suspension upright or hub that carries the wheel. Fitment 2004 - 2007 Buick Rainier2003 - 2006 Chevy SSR2002 - 2009 Chevy Trailblazerfitment type:Direct replacement, part type:Control Arm Bushing Kit, greasable or sealed:Greasable, surface finish:Polished, surface finish:Rust Protected, oe spec or performance;custom:OE Spec, replaces oe number:K640293, replaces oe number:K640294, replaces oe number:CK640293, replaces oe number:CK640294, replaces oe number:RK640293, interchange part number:K6664, interchange part number:CK6664, interchange part number:TXMS50104, interchange part number:TXMS50105, interchange part number:MS50104, interchange part number:MS50105, warranty:1 Year