In stock now. Pair of Forged aluminum CNC machined rear knuckles, Gold anodizing, Replaceable Bearing Joint with CrMo taper-pin, Dynamic toe control requires our clevis based complete toe rod, or your OEM toe rod with our part number OTR Outer Tie Rod end. Compatible with OEM or aftermarket rear upper and lower arms. Works with drum parking brake. Compatible with the following brake components sold separately: [C7-base model foot brake caliper including GM 1722629 heavy duty J6+ heavy duty rotors GM 1771207 + secondary Z33 track model caliper, Our all new reproduction p/n CZ33R], or [C7 GS/Z06 foot brake caliper only + GS/Z06 rotors + NO secondary caliper] *includes zinc plated steel spacer for hubs for use if you are removing drum parking brake to ensure proper brake rotor offset. Includes aluminum spacers for use between secondary (Z33 hand brake) caliper & this knuckle.