I was asked on monterosportonline.com to post the steps so I thought I would post them here too. I believe all the Montys have the same frame to body mounting set up.

1. You unbolt all 10 bolts from the body.
2. Lock up all the brakes, so the truck won't roll.
3. Remove any running boards that are attached; they are bolted to the body rails just under the roll pans.
4. Using a 4X4 or 6X6 piece of wood about 2 feet long place it between your floor jack and body rail. (Run it length wise along the metal piece that is about 1 inch wide that runs along the bottom of the side roll pans.)
5. Jack up one side at a time and place spacers between frame and body mounts and drop in new bolts. (You will need to go to a hard ware store and get longer bolts.)
6. Lower body back onto the frame.
7. Repeat these steps for the second side.
8. Bolt body back to the frame.
9. Check all lines, connections and linkage to make sure everything is still attached.

NOTE: I DO NOT recommend doing anything over 1 1/2 inches on this truck, unless you replace linkages, connections, and lines.

Also, I recommend getting new rims with a shallower backspacing to push the tires out farther to lower your center of gravity.