Your ratchet, are you talking about the round head with the torx screw, that also came in Craftsman, Allen, Armstrong, etc.?
That's it, a T15 takes it apart.
I was asking because there's something about that design that seemed to have a problem. I had several of them that acted up. In at least one, the spring end in the pawl was badly worn down and would no longer stay in place. Not one of my favorites.
Oh yes. I replaced the guts long ago in that one with the Crafty guts. I think I have another Craftsman and Allen that need some attention.
You should definitely get Gearwrench to warranty it so, you'll have a decent ratchet. 
What did you have to do? Call, email? Did you send it in?