FOUND 8 3/4 Ring and Pinion 5.57 or 6.14 Gear Ratio

Hi i am looking for a ring and pinion 5.57 gear ratio or 6.14 gear ratio for the 8 3/4 axle. I believe they were old direct connection products. I can't seem to find any new and I know they exist. If anyone has one for sale please contact me. Thanks

5.13s if interested, I put 2or 3 passes on them and few street miles.
742 case.