I have worked with some people that would have to shift their position to be able to use their right hand and only use the left hand to support.
I used to take an oil pan on a NTC Cummins in a tractor and balance it on my shoulders, that way I could just straighten out my legs to raise the pan to the block. I would have two bolts in each hand so that when the pan was up I could start four bolts. I could do it faster with out help.