1967-68 Pontiac Firebird pitman arm.
Steering component, fixes to standard steering box on all cars with v8 engine.
Curved arm design part no;C-6859-204A
Probably fits v8 Camaro too, check your catalogue.
Complete with grease fitting.
Quality part. Retail $160+ shipping +Tax.  
Bargain, as new, bought and not needed so here it is.
Thank you for the interest, please have a look at my other spares.