Originally Posted by FoMoCo Fan

Used an impact??? Bluejay you even changed plugs before?? #7 is not really that easy to get to, i would be AMAZED to see an impact wrench fit in there. Why are they pulling the motor?? You can R&R head in the truck. If they need more room, lift the cab, its quicker and aeasier.

I would get a second opinion from another local shop. sounds funky to me