I have been searching for most of the night and haven't found any success stories so far.
I really, really do not want to do anything to the frame...
I've never heard of anyone doing anything to the frame with Tri-Y's. On a 2WD it will fall thru to the floor if you don't hold it in place while starting the bolts. On the passenger side, it takes a little bit of wiggling to get them past the starter bulge, but once thru, it too has to be held in place to keep from falling nearly to the floor.