I have the internal parts out of a TH400 that might be usefull in a rebuild. It was from a 400 that was in an old Jeep. Since I got rid of my truck that had a 400 I don't need the spare parts anymore. Free if you can use them.
I will definitely keep this in mind and ill get in touch with you when i head up north next to grab this. But if someone needs them in the mean time don't feel obligated to hold them for me.
If you still need one, I have a 2wd with a torque converter that I can let go for $200. I don't know a ton about these but I was told it is an HD out of a 1 ton pickup. I'm in South Jordan. Call me if you think you could use it. 7754216599.