How do you replace the passenger side front window for 1990 Chevy Lumina?

<<palm boy 051605>>

I'd take it to the automotive glass shop (or have them mobile to your location). You should be able to get it done for a reasonable price (quick).

That is unless you have time and interest in getting a lot of cuts on your hands from working (blindly) inside the passenger door (afer removing a bunch of trim pieces).