Kjeeper is right.....Don't concentrate all your heat in one area. Weld a little on one end, move to the opposite side.. Weld a little there and keep moving back and forth so you don't warp the axle housing.... Clean the housing really good so you get good welds the first time.
If you build up big ugly beads your sure to warp the housing....No need to weld over and over.... If you haven't welded for a while I suggest that you get some scraps about the same thickness and practice, get the welder set up just right before you start.
Poison spider Evap.Skid/Master craft grab handles/Or-Fab spare tire-can carrier/ Gibson SS Duals/ Q-tec Floor Liners/Hidden Hitch Receiver.
Viet Nam Veteran 69-70, Troop "D" (AIR) 3/4 Cav. ,25th Inf. Div. CUCHI RVN. UH-1H Crew Chief of the "Pinball Wizard" 68-16224. Call Sign "CENTAUR".