I've never done it....to preface this statement. If I were to do it I would just tack weld the brackets while all together . Next I would drain the oil/pull the pain ...possibly remove the axles. Then weld away with it out of the vehicle. Would be a lot easier to weld , clean up, paint, etc out fron under the car. Just my $.02 Good luck
PS I was going to have to do this same thing but cheated and ordered a moser with brackets already installed from Frank.
