I almost never got my old wires off!!!!
I ended up having to unscrew the tip from the plug, with the tip still up inside the wire boot.. Remove the plug. Put the plug in a vise.. Screw the wire back onto the plug... And hammer it off with a punch..The tip was literally FUSED to the inside contact of the wire. I used anti - seize on the plug tips when I re-installed them..
Everything seems fine.. I still pull the wires off on occasion just to be sure I can still remove them.. THe tips on these plugs don't unscrew...
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