on a 92?
If it is left hand thread it will say on the fan shroud.
I believe your 4.0L OHV in 92 is regular right hand thread.
You need a special fan clutch tool, you can borrow it from any good parts store for free (leave a deposit)
I ended up renting them so often that I just bought one from Napa for $28, works great! IN fact I jsut used it yesterday.....