3rd gear issues on 727 after Tf2

It's supposed to have slack in it.
Remember how the TP rods had the long slot?
The slack in the TP cable is basically the same thing.

See here.
This is just a random pic I grabbed off Google of a lokar cable on another Mopar.
Thats why the attaching clip has a hole all the way through.:D

View attachment 1715390429

Good catch. Yes, and on my 70 w/383 has the slot and there is some rod slack "slop". I was going through the fluid operation and trying to figure out what I could have done wrong. Makes perfect sense now that I've adjusted the TP back and forth. The diagram on Lokar instructions shows the same thing as the photo what you posted. I think the difference is, they don't account for a modified valve body. If I adjust per their instructions, there isn't any slack which contributed to the initial issues. I understand the operation and will adjust accordingly. Any good suggestions on rpm or mph for 1-2-D? Also, what about KD from 3rd to 2nd, suggested RPM or MPH? Maybe just set it by feel?

Was your 1-2 shift real late and hard before? Is the 1-2 too early now? Doesn't make sense.

Yes it "was" and not too early now. Yes makes sense. I've never used Lokar and I would say about right now. I just need to do some fine tuning. See above comment. Thanks guys!!!!!!!!!