I went with Reilly........early A body , the track is wider than stock and I had a problem with the tire getting into the passenger side wheel well lip on the front edge.
Probably would not be an issue with stock dia, wheel and tire combo.
But the ride is great , and since I had to build headers for the deal , I think it was a great choice.
I spoke with Bill several times and even after purchase issues were a simple phone call from solved.