I just happen to be finishing up my '85 D-150 and tearing apart my Dad's '65 New Yorker. The upper control arms look very similar. I haven't had a chance to take measurments yet. But does anyone know if parts like upper control arms, spindles, etc intercange? I know lower control arms won't because the D series trucks are coil spring and the C-bodys are torsion bars. But If the spindles would swap from the trucks to the cars that would be a cheap disc brake upgrade. And I could get tubular upper control arms for a C-body and bolt them on my D-150.