Guess on gears in a '74 318 Duster with 8-1/4 rear

DusterDaddy said

You're not the first guy to say that Trailbeast.
The whole project has been an adventure.
The last major thing left is to reset timing after discovering a leaky brake booster then I'll drive it a bit and go from there.
Ignorance, desire and determination are a productive combination, although I'm at this thing for nearly six years....
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I hear ya, as my car was almost in that condition when I bought it and drove it home 150 miles without knowing anything about it.
I did notice it shifted from 1st straight to third right away, and that almost literally everything was either loose or broken.
Heck after I got the car home I found out all the spark plugs were only finger tight.:D