Any trick to removing the selector assembly from a round head ratchet? I've figured out how to remove the drive mechanism from the wrench body, but can't get the selector and pawl assemblies removed. The ratchets are generic Taiwan and USA models, and I need to get them apart to TIG weld a few sockets in place for a tool set I am making. A couple of the ratchets have the plastic selector, so they need to be completely removed. Thanks!