If it is that bad, you may want to look at seeing if your bodymounts are bad as well. If you can look down the channel you might be able to spray a penetrant down. If you are looking at doing a body lift, take this opportunity as you might be able to loosen them up ahead of time and put some antiseize on them. Just be aware if they are really bad ( I did mine about 4-5 years ago and remember reading 98s at that time breaking and spinning bolts) you may bite off more than you can chew.
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