Welding mild steel to cast iron

[Camaro Zach]

If you weld it to the cast center section you will need to use a high nickel content rod (stick or tig) as others have pointed out. you will only want to weld about an inch at a time and ping (stress relieve) the weld as it cools. It will be difficult, time consuming, and far inferior to welding mild steel to mild steel.



I highly recommend you change your mounting design to utalize the diff. cover mounting bolts and or tubular *bridge* that welds to each axle tube and goes up over the center section. Something like this for the diff. bracket:

and this for an oversized diff. bridge i built on a sandrail:
http://www.blazinlow.com/forum/attac...&postid=613804