Who does the best de-greasing?
 

My car has 41 years worth of mud, oil, grease and crap on the undercarriage and suspension. I need a place I can take it to who can do full de-greasing, taking care in sensitive areas. Getting ready to do suspension upgrade and want to be able to see any areas that will need repair.
Any ideas? I seem to remember someone had an add on here, but can't find it now.
Thanks in advance