Thanks, Mike! Here is what these things do, looking toward the back of the car.
Right side before. Still digging on the undercoating!
Attachment 340952
Left side after. They tie the subframe to floor, fender, and inner fender.
Attachment 340953
Looks like Plum Crazy! That thing got a Hemi?[/QUOTE]
Yes...Plum Crazy. A '71 340, Steve, with a ridiculous 10 3/4 compression and a huge solid-lifter cam.
Someday, I will give it a nice, more driveable hydraulic stick. Too much motor for my purpose.