Taken from an ebay seller (amazing store for old 7's, I might add), but just the simple stock FB shift knob.
http://i24.ebayimg.com/03/i/06/17/78/18_1.JPG
Someone correct me if I'm wrong, but unless that GTO (2nd gen) was a drag car, it shouldn't have the LeMans chrome bumper, I thought the Endura was on all GTO's.
Chrome bumper is lighter, a lot of teams put it on for weight savings.