Anybody done it? My dad's '97 suburban is in need of a new one because the case is busted. I can buy a new one off of e-bay for around $55. Sound like a good deal? Remember, these are the power mirrors. And, more importantly...what's the replacement procedure like? Is it strictly a bolt on piece and plug in the wiring, or do I have to take apart the whole freaking door? Thanks for your help.