Minnesota
1/2 ton status
So I have everything off, including the fancy cast aluminum bracket. Getting all Zen, in terms of taking my time and cleaning everything up. I go to remove the studs on the back of the original pump, as they are to be re-used on the new. Wicked freaking frozen in. Pump is secure in a vice, a little heat, won't budge. PB Blaster soaking as we speak. 
Main question is if these things are available if I jack 'em up. No love at O'Reilly nor NAPA.
Moreover, they are not jiving with any wrenches currently in my stash. Bigger than 11/16, smaller than 3/4. 18mm is real close (close enough to work if they would break), but a touch too sloppy to reef on it. No dice on 17mm...Things have minimal interface.

Main question is if these things are available if I jack 'em up. No love at O'Reilly nor NAPA.
Moreover, they are not jiving with any wrenches currently in my stash. Bigger than 11/16, smaller than 3/4. 18mm is real close (close enough to work if they would break), but a touch too sloppy to reef on it. No dice on 17mm...Things have minimal interface.