I've always actually removed both pipes each time by using a socket (27mm?). Its real simple, only a few bolts to remove/loosen. Slightly twist/rotate the mufflers as you pull them straight back so you don't damage the gaskets. Put anti-seize on the gaskets before reassembly so they will come undo easy next time. Its also a great time to change the rear end fluid and grease the fittings (5?) on the suspension linkage. Don't forget to grease the hub splines and the axle before re-assembly.