Craftsman Torque Wrench rebuild/recalibration

Yeah, Craftsman's support used to be great, back when you could just walk up to the counter and throw the stupid thing down, this tag team Lithuanian phone support routine is laaame. If nothing else will probably try to rebuild it myself but I have low expectations. Maybe I can find a place locally that has a calibration machine or I'll just do a maths-n-weights calibration on it when I'm done.