Outer Limits 4x4 Board

im doin an mq diff swap an i need to relocate the perches central
maybe 50mm..

so far its taken 2 cutting discs, n 2 afternoons to remove the
rear perches n grind em smooth. (100mm cuttin discs)

whats the easiest way to remove the cast perch on the drivers front?
how does the cast center handle welding the perch back on?

Special disks forcast iron.
Very hard to gat a stable or strong weld on cast.

Bazzle