Take a torch and heat up the nuts pretty good, if you have to use an extension on the breaker bar to loosen the nuts, and you shouldnt have to remove the guard. Start the nuts with the breaker bar will help the impact gun. You could then use the air impact gun to get the nuts off. Unless its a strong gun.
"Its a Ford. Nuff said. Everything else is just a glorified tonka toy"
"ASE" Certified" Parts Professional
92 F150 302 4x4 Long bed Extended cab
2001 Taurus wagon