Stir together cake mix, flour, yeast, salt and warm water in a large bowl.
Allow to rise in warm place, 85° F, for 1 hour.
Combine sugar and cinnamon.
Turn dough out onto well-floured surface; divide in half. Roll one portion into an 18x12-inch rectangle.
Brush with half of butter; sprinkle with half of sugar mixture, half of raisins , and 1/4 cup pecans.
Roll up starting at long end; cut crosswise into 16 slices, 1 inch thick.
Place rolls into lightly greased 13x9-inch pan.
Repeat procedure with remaining dough.
Cover and chill rolls for 8 hours. Remove from refrigerator and let stand 30 minutes.
Bake in preheated 350° F oven for 20 to 25 minutes or until golden; cool slightly.
Stir together powdered sugar, milk and vanilla; drizzle over rolls.
Sprinkle with remaning pecans.Servings: 32 rolls