I had a couple of boxes for my 68 GT 500`s restored to Concours condition, Jim at Shelby parts did them. They came back looking real nice but required adjustment. It was what I thought was a required procedure after a rebuild. Using a very long flat head screw driver I turned the jack screw until the desired play was established. I didn't get carried away with turning the screw, you could tell the difference in the steering wheel as adjustments were made. Didn't seem to be a big deal.