I have the 95 and 97 FSMs.
There are differences with electrical, emissions and some locations of engine components (wiper resevoir, ...) but mostly emissions components.

The 3.4L is pretty much universal for all the trucks except for the emission changes (Toyota BAD!) ..VSV locations and additions.

Ofcourse, the differences are subtle (I was going nuts tracking connector numbers on the schematics...hence why no one hear futher on what is needed to make a 95 into 97 for S/C...).