Just the part that runs down the backside of the engine to the pivot rod on the side of the transmission. Not sure exactly which year model, looks like the ones I have had on '67 Coronets with 318s?
It would still be missing the upper crank/pivot that attaches to the throttle bracket, and the carb to crank/pivot linkage rod, and the lower crank/pivot (transmission mounted) linkage rod that connects to the kickdown lever.

If you need a kickdown, and does not need to be original, the cable operated kickdown kits will work.