$60 rock anchor or $300 for a decent spring. I have run F150's/Mazda's on the rear but I hated my shackles dragging the ground. I opt'd for Marlins 4" front springs in the rear and made my shackles go thru my frame for better departure. Of course they are kinda stiff but I will be removing a leaf at a time till I like it. I would rather have a stiffer ride than worry about my hanger/shackles dragging everywhere.