Mix 1 1/2 cups graham cracker crumbs with 1/4 cup each sugar and melted butter. Press into bottom of 9" square pan. Combine 1 1/2 cups pumpkin with 1/2 cup brown sugar, 1/2 teaspoon salt, 1 teaspoon cinnamon, 1/4 teaspoon ginger and 1/8 teaspoon cloves. Fold into 1 quart softened vanilla ice cream. Pour into crumb lined pan. Cover and freeze until firm. Cut into squares. Top with whipped cream and pecans. Makes 9 (3") squares.