Hi, 59toaster,
I had another chance to look at it this morning (again in the rain). It does have a 12-bolt rear end. It also has rust on the firewall (and a couple of holes, actually), the bottom of the doors, the top rear parts of the doors, the lower fenders, around the turn signals, and around the cargo light.
In a break in the rain, I took it out and cautiously poked it to the floor. What can I say? It picks up its skirts and rushes forward in a most undignified manner. (I had forgotten just how cushy the TH400 with an always unlocked torque converter went through the gears.) After about five seconds I discontuinued that experiment. It turned out that I had forgotten about how big engines have compression braking, too.
The speedometer is slow. It says 40 around 60.( I'll use a GPS to get it to the house.)
As for the ride, it's already better than my Dakota. With that GVR, I don't think it will bad at all.
I need another project like a hole in my head, but in my mind's eye, I see this old beast and my Excella going down the road, and it's something that a person might have actually seen in the late 70s and 80s.
And, boy, this IS a project. The hood ornament is even missing.
Lamar