Cutlass / 4-4-2 → 1968–69 ● Confirmed Mandatory with W-32 1970 ✓ Factory-verified V-01 mandatory w/3.91 axle, V-02 w/3.42 axle. Factory list: "Radiator - Heavy Duty" ⛭ GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.