This is one of those cases where the original Ford part is far superior to anything else. Like another reviewer, I tried the reproduction springs and was very disappointed, they stretched out over a few months and barely held up the hood. As soon as I threw those away and put some originals back on, the diffrence was dramatic. They are strong enough to hold the hood all the way up, just as Ford intended. Get these!

Going with these, over reproduction, is definitely the way to go. Reproduction ones I tried, would not hold the hood open. Got these used ones from WCC, and they are excellent. No more guillotine effect, while looking under the hood, ha ha.