The axis line of the extension is only maybe one inch further away from the axis line of the center of the nut on that 3/8 drive setup looking at the picture. I’d bet you’re not even .5 ft/lb difference than when being directly over the nut.
Get the box end crowfoot adapters, so you’ll be grabbing more surface area of the nut, and put it on 47, and click it. Done.
