what size well nuts would I need to replace the ones that were OE in the wing?

I was able to fish each one out without wrecking the wing, so I am seeking replacements to put in,
along with some low profile wing-stands I will be making, since the originals were poop.

Au-Ve-Co makes them. GM part number 14005097. They are M5 - 8, Range is 0,35 - .232 in. Au-Ve-Co part number 16248. These are standard sizes used on many many GM luggage racks, but since there are usually at least 2 different sizes used on the racks, you must ask for them by size or GM part number if you get them at a dealer. Be sure to get stainless or brass countersunk screws to go with them.

I just used the next size up from this one as I had some laying around for another project:

http://www.mcmaster.com/#93495a180/=niu1hp

You have to go to a 10-32 screw though:

http://www.mcmaster.com/#92480a829/=niu3ec

Not an oval head though like the original

Or stainless oval head if you prefer:

http://www.mcmaster.com/#91802a829/=niu5av

Not sure how they compare in price/original if that's an issue to stock GM? Just another option . . .

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[This message has been edited by Brucepts (edited 07-07-2013).]

Okay, thanks for your help guys! I will get to things asap. and see what I can do!