I am trying to identify these ground brackets. The 8 finger one is from a 80's G20 van, and mounts on the boot that seal s the firewall where the steering column passes through. The 6 finger unit is from and 80's S10 and I believe it mounts on the parking brake mounting bracket on the driver's kick panel. I know it's a ground bracket but GM does NOT call it that. I am looking for the correct name, or even better would be the part number. My T bucket has a fiberglass body, tuff to ground through that.