Glad you got the nuts off but just as a point of information..remember that when going to a 3/4" or especially a 1" drive impact that they gobble air in big bites. You need a compressor that will stay up with them and a larger hose to handle the increased volume of air. Your little 3/8" air hose won't cut it. I had a new 1" drive C/P wrench that was worthless on truck and trailer suspensions until I upped the shop air to 1/2" hoses. Then it would really go after it.
