Remove ribs from packaging & drain.
Mix up the rib rub and set aside.
Cut up the ribs into serving size pieces that fit in your slow cooker.
Rub the ribs down on both sides with the rib rub.
Set the ribs aside and allow them to rest while you mix up the sauce. This make the rub sorta "meld" with the meat.
In a separate bowl mix the barbecue sauce, minced garlic and liquid smoke. Reserve about 3/4 cup for later.
Spray, oil or butter your crockpot insert.
Place a layer of the ribs in the crock pot. Liberally brush them down on both sides with the barbecue sauce. Continue the layering process until the ribs are all in the slow cooker.
Cover and cook them on low for 6 to 8 hours.