jimmy to envoy

ok so i was wondering...someone showed me this picture of a 98 jimmy and said they put it enovy front end on it and that it bolted right up to it. so...would it work the other way around? like say i wanted to get a kit from a 98 jimmy and put it on a 98 envoy? and if it does, what kind of other things would work like that? taillights n all that