I have a set but they are sitting in my storage unit back in Ohio. So, does this doesn't help at all but I hate to see posts go unanswered. I think the sub-frame connectors were actually made by someone else(he's reselling) but I don't recall at the moment because I ordered a bunch of stuff at once.
1968 400 Coupe, verdoro green, black vinyl top, auto 1969 GTO Judge coupe, Carousel Red, manual 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver), Fire Red, white top, auto 1972 Buick GS Stage 1, Royal Blue, black vinyl top, auto