Axle web cutting for spring

[boghog]

I'm looking for any ideas on how to best reshape an axle housing for relocating the leaf spring to the bottom of the axle from the top. Hi pinion Dana 60 from a Ford, driver side has the top of the axle set up for the leaf. For me to use this truck I will have to lower it to a height easy for me to get in and out of with my bad back.
Ther is a wide large web that I was going to grind or cut away to make a new spring pearch. I would like to stay with this axle, I have it set up with new gears, bearings, lockouts, all new everything. This was done before my back injury. I'm also looking for ways to weld this housing with my mig welder. I sold my stick welder a while ago. I believe that when welding steel to this housing I need a high nickle content rod, my mig weldre has just one type of wire. I would guess that maybe, there is a small roll of the proper wire available for this. Anybody know, Or will I not need a special wire?
Thanks Dennis