Slow cooked pulled beef with dry rub bbq

4 - 5 pound chuck roast
3 TBS brown sugar
2 TBS paprika
1 tsp. garlic powder
1 1/2 TBS salt
1 TBS black pepper
Combine dry ingredients and sprinkle liberally over all sides of the chuck roast, patting down to stick.
Place seasoned roast into crockpot and cook on low for 8 hours.
When cooked, remove from juices (reserving juices) and place roast on a cutting board or other plate and using two forks, pull the meat apart (shred). Place shredded beef back into the crockpot in the reserved juices. Serve on buns.