Staren72
New Member
I'm preparing to change out my coil packs and spark plugs for a 99 5.4. but I've found 2 of the bolts are stripped. I'm going to replace all of them, but don't know what thread size is. Does anyone know the thread size and whether I can get them in a hex head rather than standard star? I'd prefer to use a socket for future change rather than a type of driver.