Nope they are a flanged and bolted bolt. You just pull the 2 12mm bolts that hold the flange on then pull the 18mm nut and pull them right out. Sometimes they can be a pain to pull, so its easier to twist the bolt by useing a pipe wrench on the flange as you try and pull it out. Ive had to put the nut back on the bolt and beat it a little bit to get it to start to break free while I twist at the same time. Good luck you just might need it.
