What to loosen/remove should be fairly obvious. I don't replace the clamps. Once the clamps are loosened and slid forward/back you'll find the muffler itself is a tight fit so you're going to have to carefully wiggle it a bit. Before you begin, spray any clamps/bolts etc with something like WD40 and wait 20 minutes. MoCo manual/parts catalogue are well thought out and well worth the cost.