remove the motor, good time to clean and check your wire harness and cover it with new tape or flexi wire covering.
remove your skid and track.
unbolt your trailing arms in the back and let them hang
unrivet the back of your bellypans and let them hang
You can then drill out all of your rivets, drive the nails out of them first and if you have someone around, hold the backs with vice grips, it will go faster
once it is loose, you will also want to remove at least one of the nuts that is riveted on the inside of the tunnel. they will get in the way. also, there are a couple of other rivets that if you look, you will see they stick in the way, this is what makes the tunnel too narrow, its not the tunnel, its a few rivets that stick inside.
At the top of the tunnel, you have the top panel. you should remove a couple rivets on either side of the heat exchanger to allow you to slide a screwdriver in between to spread it a bit.
Should come right out
back in the same way.
It is alot of work so plan on a long day
If you search some of my posts, there is one for the easy way to bleed your sled and one below that tells the easy way to install your skid without swearing or using a spring loaded battering ram with rubber band boost packs.
The reason you can not find on on line is the first few years, you could only buy a frame, no pieces. if you look up a 2001 sled, it will be in there. I have used and rivets. You never really own anything till you tear it all apart and put it together yourself