I'm about to change the plugs on my silverado and the plug wires have that DAM heat shield on them. For the life of me I cannot pull those suckers off even with an autozone spark plug boot removal tool.I'm sending out an S.O.S man down.Thanks all in advance.BTW to the fellas who will chime in and say why am I changing them. I have always changed my plugs out at about 50-60k on all my GM vehicles because my plugs have always had extended gaps in them, also I'm going with the Denso TT platinum not the $10 AC Delco OE