Things You'll Need:
- Muffler
- Large piece of cardboard or an old blanket
- Penetrating lubricant
- Wrench
- Sledge hammer
- Hacksaw
- Trash bag
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Step 1
Check to see if you need a new muffler on your Ford F-Series pickup truck by looking under the truck towards the back end. Check to see if there are any small or large holes or cracks in the muffler to determine if it has fallen off partially or completely.
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Step 2
Purchase a new or used muffler for a Ford S-Series. It should have a 3-inch inlet and a 2.5-inch outlet. A new muffler is best, however, you may be able to find a good muffler for a Ford F-Series from a junk yard. Make sure the muffler corresponds to the same year as your vehicle.
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Step 3
Place an old blanket or a large piece of cardboard on the ground beneath the rear part of the truck on the ground. You can also put the rear part of the truck onto jacks if desired. Make sure the vehicle is completely secure and will not roll away or fall.
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Step 4
Look over the old muffler checking it to see if it is bolted on or welded on. If it is bolted on, spray the fasteners generously with a penetrating lubricant before you loosen them. The penetrating lubricant will help you to remove the screws and bolts with ease.
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Step 5
Remove the old muffler. Loosen any remaining bolts with a crescent wrench and take the muffler off. If the muffler is welded on, then you can break it away by knocking it with a sledge hammer or sawing it off with a hacksaw. Dispose of the old muffler properly by breaking it down into small parts. Put the small parts in a trash bag and throw away.
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Step 6
Replace the new muffler on your Ford F-Series pickup truck. Line it up as straight as possible with the clamps and then tighten the bolts to hold the muffler in place. The bolts should not be too tight because the muffler needs to be able to move slightly to prevent damage to the muffler or to the truck. Hang the muffler with the muffler hangers that come with the muffler. If there are no muffler hangers, you will have to purchase them separately. Do not put the muffler on too loosely or it may fall off.
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Step 7
Start the truck's engine and check the muffler for any leaks or loud sounds. If there are leaks or loud sounds, then you may need to tighten the clamps more. If this does not fix the loud sounds or leaks, the new muffler may be defective.
