So there is this GUY up near your neck of the woods, he's done a great job of coming up with parts over the years for our A-bodies even going so far as to reproducing a LOT of stuff no one else wants to touch 'cause you know... a-body.
Seriously glad for you to have picked up and committed to...
Good point! I don't see the 68 side markers or actually any badges on that fender...but the mirror is in the right spot for a 68! And the rear tail lights and trim are 68
Since that's a 68 Barracuda and if you want to be correct...use 68-69 B body seats. The 66-67 will work, they just have a hard shell back and a little chrome trim strip. The rails however are a-body unique, ones from a 67 Barracuda (or Dart) WILL work as well. Just need to swap them...
I think this is what you are talking about...
https://transmissioncenter.net/shop/patc-727-to-518-46rh-conversion-kit-click-here-for-727-to-46rh-swap-wiring-diagram/
I'm gonna add my 2cents. If I can afford it I'm going with either and advantage 4 post or a wildfire 4 post lift and get their Hydraulic "bridge jack" (Wildfires link WF4500A | wildfire-lifts). two big reasons - 1) I want the safety of a 4 post lift and 2) these two in particular don't have...