Should I replace the window motor/regulator or BOTH?

[crazeetxn]

Got an '86 who's window motors are done...I think.

The don't roll up or down, but they'll click when you hit the switch and that's it.

I'm going to take them out and see if they can be cleaned up. Maybe it's a bad connection or something (if I'm lucky).

So let's say the motor needs to be replaced. Is this one of those where since I've got the whole thing out I might as well replace it all or just the motor?