I have replaced the same thing on my dryer,its pretty simple,all you need is a srew driver.first you need to take the top and back panel off[making sure you have disconnected it first]then you need undo the bolt that hold the barrel to the element then unsrew the element.BUT BEFORE YOU DO ANYTHING ALWAYS TAKE SPECIAL NOTE OF HOW IT ALL COME APART BECAUSE YOU DONT WANT TO QUESSING HOW IT GOES BACK TOGETHER.Then unsrew the worn out piece and replace it.it should be pretty straight forward.Just remember about take note of how it came apart.I hope your neighbour can get it sortrd for you,good luck
zane sayer,New Zealand, July 2007