passenger mirrors

My 2000 NB passenger mirror is in good shape except that the 2 motors inside that adjust it are shot. So while I'm looking for the motors, I'm ok with a whole passenger mirror that's in lousy shape as long as the motors work. It's ok if the glass is broken out, too - I don't need it. I'm just...

I have read a bunch on the mirrors, mine don't move, I replaced the switch, checked fuse, ... I pulled the mirror glass off and it's seems the motor mechanism is very stiff. I sprayed it with wd40 and it got stiffer? Do these mirrors have a history of this. I'm a new beetle owner? 2000 GLS...