I have a rod with a manual three hole rack in it that I was told was a Mustang II rack. The bolt hole spacing on the rack is approximately 17 3/8 and 21 3/8. The steering shaft is approximately 4 1/2 inches with a splined shaft. There are numbers stamped in the rack 35 500 and /3/ or 137 can't tell for sure and CC7 and what appears to be the ford symbol in a cicle. Can anyone help me identify this rack so I can buy a replacement.