Doesn't really matter if the creeper is broke or if it isn't. It's probably going to have to come out. Make sure FIRST that you didn't shear the pin in the drive shaft at the creeper, if it is good, just as well pull it out. Then you can see what's going on. If it's the trans, the you know what to do. If it's the creeper, then, well, now you have it out!