How was your roof? seems to me the roofs were a weak spot on the old crews?
The floor pans were it for rust. Everything else is solid.
I ended up going with the stock Dodge auto trans. I can replace it roughly six times for what it would have cost to go with the Allison. Just wasn't feasible.
Things left to do
Mount/plumb the 38 gal tank
Mount the divorced 205-order drive lines
Pressure test radiator and mount it-figure out hoses
Drill holes and bolt up inter cooler-figure out hoses
Mount two batteries and wire everything
A/C - trading the old 460 to a friend to put this in along with the trans cooler lines and hydro boost brakes.
Floor pans (half done)
Dynamat
Exhaust
I'm gonna run the 44 up front until I find a 78-79 D60 for the right price.
Thanks again for all the compliments and encouragement.