My Ford Ranger's bumper was slowly decaying under the announce of rust so I figured I would put an end to it and give it a little TLC.
To get this started we're going to gather all the materials we will use to complete this instructable.
-Metal Brush Bit
-5/16 hex bit
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To prep for this project your going to remove the bottom bumper. The reason for this is so you don't accidentally slip off the metal and scratch your plastic bumper and to also get the metal where the two half meet. This is where the 5/16 hex bit and impact driver come in. Under and behind the bumper there are strategically place bolts that hold the plastic piece in place. Remove and be careful not to have the bumper drop on top of you.
Once you have the bottom half removed go ahead and insert your metal brush bit into the drill and have at it. Your going to do a quick pass through and knock off the top layer of rust. When the first layer of rust is brushed off do a thorough brush through and get all the areas that were more effected by the rust. This may need a little elbow grease so you may have to apply some pressure to really get to the bare metal.
Once you get all the rust off its time to get spray painting. I used this brand of paint I bought at Lowe's that is "specifically" for bumpers.
I used an old coke box to protect the body from unwanted paint. Go ahead and wedge in-between the bumper and body. Make sure you maintain a good distance 7inches or so. Your going to apply a couple coats to make sure the bumper is taking the paint really well.
Well there you have it folks a restore metal bumper on a Ford Ranger. Good luck with your project and I hope this instructable was helpful.