Underhood fuse box?

I am trying to change out a fuse in the power distribution box under the hood, Its an 89SC. The fuse thats bad is an 80amp and its clustered with two other fuses. So I've got three fuses together and I cant remove any of them. Is their a trick to it? Thanks for any info!

big pliers

Those three fuses are in a holder that you will have to pry up with a small screwdriver. You will then see three bolts on the side that secure the fuses.