Have any of you ever heard of a tool called Gearwrench? I got a used metric set on eBay, 8mm - 19mm. It is an awesome tool. One end is an open end wrench the other is a ratcheting box end. The great thing about the ratcheting part is that it needs only 5 degrees of arc to catch, instead of the usual 30. So if you are in a really tight space you can get those fasteners off. I have a set or ratcheting box ends but they are sometimes too big and clunky to get into tight spots.

I have absolutely nothing to do with the company but wanted to get the word out. Check out eBay once in awhile to see if you can find a used set as the new ones are a little pricey. After using mine a few times though, even the pricey ones would be well worth the money.
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'61 PV544 - '65 PV544 - '64 Lincoln Continental