How many times have you replaced the Motorcraft COPs and they have lasted only about 3yrs/36,000 miles?
More like 3-yr/36K-miles or less on the OEM COPs and DCCV in my car. I'm still rocking the original cooling system stuff at 11 years and 140K-miles later. It's the one issue I HAVEN'T had with my car yet. COPs, DCCV, and Toe Links I've all been through at least once, most twice. The DCCV I've been through 3 or 4 times from what I can remember. I got 140K-miles out of the OEM AC compressor and Valve Cover Gaskets before they started to leak as well. Already did the valve cover and the AC system is coming up this weekend.
I'm sure that the cooling system stuff is coming soon, but I'm not going to go look for more things to fix. I still have the Drive Shaft Center Bearing to replace, front suspension overhaul, rebuild all 4 shocks, brakes to replace, and then finally general interior replacements. I may have got 140K-miles out of the car but the last 10K-miles or so things have deteriorated quickly.