COP's off of Ebay?
I bought the ones off of ebay for 100 bux. Same thought as you, I didn't want to spend 70 bux a pop for them. Of course I saved the ones that came off the truck just in case I had a problem with the aftermarket ones. They have been on my 01 4.6 for almost a year now with no problems. As already stated, be sure to use di-electric grease.



