Place pork in large slow cooker and rub the Grill Mates BBQ Rub all over the meat. Add the Dr Pepper, Claude's Barbeque Meat Marinade and the fresh garlic cloves. Cover and cook 6-8 hours (until it is falling apart). Once it is cooked, pour out all of the liquid and garlic cloves in the slow cooker. Add Sweet Baby Ray's Barbecue Sauce over the pork and heat to serve.