You shouldn't have to notch the window to get it out. I have done it on my '98 and it was pretty simple. Loosening the track all the way makes it considerably easier. A hammer and large screwdriver made short work of driving the old ones off (through the track window) and the new ones went on almost as fast.
The tracks may be enough different between the '94 and '98 that you have to notch it, but I would be surprised. I just drilled 270 1" holes in my track (ported it), I doubt shaving an 1/8th off of a couple of windows will hurt it.
The tracks may be enough different between the '94 and '98 that you have to notch it, but I would be surprised. I just drilled 270 1" holes in my track (ported it), I doubt shaving an 1/8th off of a couple of windows will hurt it.