Been there...done that...Lucas may free sticky check balls and solenoids, but it doesn't put back lost friction material. And neither does a full trans flush, but I did that because the old fluid that was in there just wasn't viscous enough to do much...in fact before I changed the fluid there was several instances where I lost ALL motion capability no matter what I tried...afterwards I was able to go through all the up and downshifts, but with little to no friction material left, well, you get the idea

6 speed manual time...