71 340 Duster Clone

Hello,
Soon will be ordering 4 Bilstein shocks for my 71 Duster. It was a /6 but 340's going in, 340 K frame rebuilt, stock height. Has disc brake conversion. Looked at PST site, looks like part number BIL7056063 is what I need, is this correct?
Edit. Forgot, rear end swapped to 8.25, don't know if that matters.
Thanks, Rich