i changed both of mine also it is a pain but after you do one side the next one goes by way fast. i would suggest getting a friend to help. I replaced the whole window motor assembly i didnt try replacing just the motor.

 

Any tips on how to get the old window out and the new window in?

 

see if this helps also check shbox
https://camaroforums.com/forum/93-02-general-41/driver-side-window-slides-back-forth-43730/

 

I've replaced the drivers side motor on my 97 twice now. But it from Autozone and it has a lifetime warranty.

These instructions from shbox were a life safer.

http://shbox.com/page/windowmotor.html

Only took me like 1 1/2 hours.

Good Luck

 

And the verdict is ********* the switch! Though I had already bought the motor and regulator and since the window has been super slow for the last year and since I already had the door taken apart I installed the new parts. It actually wasnt that bad of a job. Im no mechanic and im also a girl (though I think you guys know that) and it really only took me a couple of hours.
Window motor and regulator $90 on ebay
Window switch $20 from the Chevy dealership
Doing the work yourself and not having to pay labor.... priceless.