Idler arm problem

Mounts for the steering box and idler arm don't change 68 to 76, but complete assembly of pitman, idler, and tie rod centerlink need to match. 68 to 72 centerlinks mount above arms and middle is lower than ends to clear oil pan. 73 and later mount below the arms and is straighter. Tie rod ends will interchange with either. 73 and later power steering boxes use a pitman arm with the larger C body spline diameter.