Looking for a Power Steering Gear box for a 68 Barracuda

Chrysler part #2537730 was superseded in 1969 to 2537736,which was good thru 1972. Lares corp. website shows #1033 as a stock replacement. Firm Feel boxes are also available #11033 and #11043. They can be ordered at many auto part stores.
Rockauto shows out of stock on the #1033.
You can also check #2537730 and 2537736 on the internet for other sources.