Picked up a "unique?" parts dart

Hey all,
I picked up another 74 swinger from a guy locally yesterday. Last tabs are from 08 so it's been sitting awhile. Guy said the motor was "tired" and using water when he parked it. It's a 318 auto and the guy swore it had lower gears than normal. Also has factory (I think) 15 inch steelies, was that an upgrade in 74? It's also got a front sway bar which I thought was pretty cool. Oh it also has aluminum "bracing" inside the hood, I'm pretty sure it's aluminum anyways. I think it was a forest service car or something. I decoded the fender tag and there's a few "unknown" codes. Just wondering if anyone knows what they are or where else I can look them up? I decoded it with realdash.net. i'll post pics of the codes etc. It's a pretty neat 4 door, if it wasn't so rusty id fix it up but it's got a lot of parts I can use on my other swingers. Mainly the k member and disc brakes for my 71 slant!

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