I have got a nice OU front license plate that I would like to put on my front bumper...the problem is it is too thick for the stock holder. Is this adjustable in some way or are there other holders I can get that have a longer gap between them and the bumper so I can make this fit? Thanks.

I've got a plastic one off a mid-80's Olds. Just eyeballing it without removing my plate it looks like it might work. This one's scuffed on the bottom and needs a washer JB welded into one of the top holes to hold it on. (Wouldn't see the washer). Yours if you want to try it. I don't want it.