Wow, this thread is a blast from the past.
Just for reference making a new thread would probably be better. This thread is... nearly 20 years old
Short answer, probably not. Long answer, I don't know, but.
I'd wager the rate is different between the 3.4 and 4.3, and I think most 4.3s had spider injecton or something weird. don't listen to me though 4.3s aren't my cup of tea.
A quick poke around on the internet seems to indicate that most FWD 94-96 3100s are a direct replacement, though double check me on that one.