I was going to do an axle shaft swap this weekend, but I found that I have two lug nuts that are seized up on the bolts. I put an impact to them but nothing happened. I know if I put a lug wrench on them i will snap the bolts off my wheel spacers. Any suggestions on how to get them off without breaking them?
Be careful with the spacers. The aluminum is not nearly as forgiving as the actual steel axle. You can spin the stud in the spacer and destroy the splines holding it in place. I'll make a suggestiong that I have not seen yet, and has worked for me in a few situations where great caution needed to be taken.
Try using a centering punch, make a mark center of the nut if it's a cap nut, or center of the stud if it's visible. Start with a 1/8" drill bit, and drill your way just past the depth of the nut. Slowly increase the size of the drill till you have basically cut the nut off from the inside out. You should have no problem just poping it off when you get to a 1/2" drill, if it takes that!
Once you get the wheel, and spacer removed you can use a punch & hammer to knock out the damaged stud's to be replaced.