I have the track off of my 04 t190 and decided to service the the outer hub bearing oil. went by my dealer and picked up the oil and was pleasantly surprised at the cheaper price of $20 for oil .At the suggestion of the parts man at the counter I also picked up new plugs as he assured me I would probably be back, he was right they are now both stripped out. Since this seems to be common how do you remove the plugs that are stripped out?