Yes sir! I was able to get the bases off this morning. One of the track bolts kept spinning due to a loose press nut, so I hacksawed the bolt off as well as a large slice in my thumb.
Got a couple of pics of the stickers I found on them. I'm assuming they are from the 3rd Gen Ford vans? Hopefully they will work fine in a 3rd Gen Chevy too. We shall see.