Dissolve orange Jell-O and sugar in hot orange juice. Cool until thickened and syrupy (20-25 minutes). Chill Carnation in refrigerator tray until soft crystals form through milk (15-20 minutes).
Whip until stiff (about 1 minute); add lemon juice. Continue whipping until very stiff (2 minutes longer). FOld whipped Carnation into chilled orange Jell-O. Spoon into crust. Chill pie 2 hours, or until firm.
*Graham Cracker Shell: Mix 1 1/2 cups crushed Nabisco Honey Grahams with 2 tablespoons sugar and 1/4 cup melted butter. Line sides and bottom of 9-inch pie plate.