The p/n 16507924 is the used one (don't remember if it is the lft or rt, and don't know where to look to find out). It came out of my TTA, it does not have the plug on the end. It was cut off to see if the motor was any good, and I lost the plug. It is a working motor. My TTA had over 100K when this came off, $30 sound good?
The p/n 16507923 is the one still in the gm box unopened. You can get them at gmpartsdirect for 130 + shipping (or about $260 from a dealer). I'm looking for $100 for this one.
I no longer own my TTA and am cleaning out my garage.
JD you have first dibs, lemme know if you want them, you can swing by & pick them up.
Ken