Get a a pair of pliars and at the base of the boot, grab it with the pliars while holding the plug wire in your hand. Pull the wire and the boot with the pliars at the same time. arounf the boot, do not crush the plug with the pliars.
If you are replacing the wires anyway, don't worry about the boot, just pull the wire out of the top of the boot and then once the wire is out of the boot grab the end with pliars and pull.
Remember to do one wire at a time to avoid a wire mix up, and the jeep not running at all or firing wrong.
If your plug wires are stuck on that badly, I would say they have been on way too long and should be replaced anyway.
'97 TJ Sport 5 Speed Soft Top and Half Doors, Sliders
Rubicon Spings and Shocks and 31x10.50's
Dreaded 3.07's GONE !! NEW 3.73's !! Front Dana 30 Rear Dana 35
Red Jeep Club Member #350
"I DON'T SUFFER FROM INSANITY....I ENJOY EVERY MINUTE OF IT !!!