mechanically, the engines are about the same (intakes are different, TBI vs MPFI). If you currently have a V6 automatic, and want a V6 manual, then grab the manual transmission from the 95. swap it in. may have to also hit junk yard for same generation pedal assembly, floor consoles, steering columns etc.

Then you will just need a computer from a gen 3 truck, as well as the wire harness for a manual transmission truck (clutch safety switch, reverse light switch, etc.)