The plugs are mig welded after it’s pressed back in. I did the press out and in method for several reasons. It self aligns itself when it’s pressed back in. You don’t have to make a precision cut either because when you press it back in there is at least a 3/16” gap before the tube hits the inside of the carrier and it’s that way from the factory. You can validate that by looking inside at the other axle tube that’s not pressed out. So if you cut is not perfect it’s not a big deal. Weld the plugs and go the extra mile and weld the tube to the carrier housing.