I broke 3 deep sockets and a few knuckles. this is what i had to use to break the bolts loose. I bought a combo wrench set from Harbor Frieght (on sale 5 piece set for $9). I cut the open end off and tossed it away on a 1 1/8 wrench.i then use a long braker bar examples-floor jack handle, conduit bender handle or a 6' fence post. these are on tight.

Here is the 1 1/8 slide in the breaker bar.