This is the lever on your steering colomn.. for blinker/turn/wiper/washer/cruise... excellent Original Equipment reproduction lever does the lot, Yours  MAY have a silver main barrel or black....both are the same but this is as show the black most common lever...& excellent price.

       Turn signals, Wipers, Pulse wipers, Hi Beam Cruise activation and control and fits from 1984 through to 1992 Firebird & Camaro with cruise control or at least the button on the end of the lever as original.

   NEED HELP ON REBUILDING THE COLUMN...???. try youtube search for Rebuilding GM 1985 Steering column or like title.