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I need to replace my reverse light switch on my 1997 chevy and the bolt is rusted in, how can I get it out.

cathy jasmin lots of muscle and penetrating oil can help. I prefer a 6 point wrench/socket when dealing with rusted bolts since they are less likely to strip and then strip the bolt head. Try rocking the wrench back and forth on the bolt. this may break some of the corrosion. If the bolt breaks, you may have to revert to drilling it out and retapping. Post some images of your situation with your question so we can see what you see. Use this guide Adding images to an existing question for that