Purchase a step saver to place under the steps. This is essentially a metal brace that fits snug under the first step to keep them all from sagging. You can purchase a step saver from RV parts suppliers for less than $20. If your hardware is damaged, steps may require a more serious repair job.
Disconnect the power to your steps if they are electrical. Do this when the steps are in their open position so you can easily remove them.
Remove the nuts and bolts that attach the steps to the RV using a wrench. If bolts turn when you try to loosen the nuts, the bolts are stripped and will be more difficult to remove. In that case, you'll need to use a saw or nut splitter to remove them. When you remove the nuts and bolts, your steps will come off with them. Place steps to the side for re-installation later.
Fabricate a new sheet-metal mounting plate. Typically, the mounting plate already installed on your RV is of a thinner sheet metal, 16 or 18 gauge. Make new plate of 12-gauge metal. If you are not skilled in metal fabrication, measure the size of your plate and have one made by a metal fabricator. Be sure to include holes in the same places as the current mounting plate to bolt in the steps.
Weld the new mounting plate to the old one. If you have any electrical or battery components near to the steps, be sure to remove them before welding to avoid fire or injury. If your old mounting plate is loose or cracked, weld the cracks shut before you install the new plate.
Bolt your steps on to the new mounting plate using new nuts and bolts.
