I met up and borrowed my cousin's 1/2" and 3/4" impact for the job. The not so great 1/2" impact (sanborn rated for 600ft/lbs) didn't do the job. I'm not sure the IR 231C would do it either at this point. So, I'll be trying the 3/4" impact next. I just need to get a 3/4" to 1/2" reducer and put a larger hose quick disconnect on the compressor.
When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity. Albert Einstein
This is the largest one of the 3 I use at work. It only gets used on bolts 5/8" and larger as it will strip or shear a half inch bolt if you're not careful.
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If you're in Nebraska and the wind stops or you see a tree, pull over immediately and take a nap. You're having road hallucinations.