Well i took it apart first thing i noticed was the outer CB bearing had come apart found half of the metal shaving from the outside of it, although it was not locked up which would make sense of the wheel spin. The springs and shoes look fine and the CB looks ok a tiny bit of scouring mabey from the the metal shaving not sure. Gonna replace the CB, bearing and re-shim and go from there. Thanks for the help guys good to know you got a place to get some info