Remove any thick slabs of pure fat from outside of roast.
Whisk spices together and rub over surface of roast.
Place roast in slow cooker.
Pour Coke over roast.
Cover and set on high for 5 hours or low for 10 hours.
Remove from slow cooker (Meat should basically be falling apart.
Remove bones and discard.
Discard all but 1/2 cup of juices from slow cooker.
Shred meat using 2 forks.
Return shredded meat to slow cooker,
Add reserved juices and BBQ sauce to slow cooker and mix well.
Set on low and cover for 30 minutes before serving.