Sorry I havent been on in a few days...But ill start out saying that the info i have gotten from this site for my 87 300d w/om603 is invaluable from the repair to my CCU, Vacuum testing procedures and how-to's,advice and how to's on injector nozzle replacement and much more to mention...but to clear the air on this 606 clutch upgrade and save some people the $50+ dollar plastic fan when possible...I have installed the 606 clutch into the metal fan without any new bolts or modification.. I accidentally found out I ordered the 606 clutch and plastic fan from online parts distributor from advice on this site(part#s on other thread) but the clutch arrived a day early and fan wasnt till next day but i had already taken old one apart in my garage so as part of my ADHD i started the work and found that it was a drop in and i could have my car back on the road immediately so i did and works flawlessly..Im starting my 2nd summer with perfect operating temps even with a/c on and many trips made with no problems..as explained in previous thread i couldnt keep it below 100C w/aux fan jumped before so i claim victory and has about 8 to 10 thousand miles on it (odom doesnt work)Hope this helps im not trying to start anything with anyone just my experience...thanks to everyone on this site for the info that keeps my 22yr old benz going
Arlo