They're probably cast Steel if they held together that long migged with no prep. I which case preheat and crack on with er70/s2Its one of those cars where the wheels are are silly angles.
He shortened them before himself i beleive, lasted for a year or so until they failed. But i've seen said arm. They cut and just welded around the cut, No V-ing or anything. I was going to MIG them, with a deep V But would rather TIG.
Didn't think of that. Had excellent results on cast steel anvils with 7018They are cast steel.
As Brad said I would pre heat them but I would weld them with a low hydrogen electrode.
Its not a performance car per se. Its a Low and Slow, Show car.
For that job unless you have the ability to get it very very very hot and keep it that way and cool it afterwards very slowly then tig is not the right process.correct process with it comes to welding Cast Iron..
I think your on the money maker with Ni sticks. I wouldn't touch the job personally but if I had to I'd shallow prep it (enough for 1 run to go just over flush) and run in with mma. I'd allow each short run to cool and peen the welds fully directly after application to stress relief.I've got some O/A rods and some stick rods for cast iron if they'd be of any use?