Go to the
McMaster Carr website and do a search on "helicoil". A page will come up that shows you everything you'd ever want to know about these little beasties, including the installation tools.
Your radiator (and fan shroud) pops out with four clips, four hoses and the two auto trans lines. Fifteen minutes to get it out the first time ever and ten to put it back. It probably takes longer to drain it than it does to remove it.
MB belt tensioners bite. My daughter's Ford Taurus's tensioner has a nice square hole to use a wrench handle in. None of this goofy wind up linkage and no shock absorber needed. Oh well. Plus, it's (MB's) buried under the water pump pulley and the power steering pump pulley. It was so much fun to replace when it quit.
