Looking at the TCI constant pressure valve body for a 2004R OD trans which is supposed to stop band/clutch damage no matter where the shift points happen. I have a 2004R in my 37 Buick straight eight and have had problems. Don't have room for the 700R4 without both frame and floor mods so would like to get the 200 to work. Have read and followed the Art Carr instructions for adjusting the TV cable and have a fresh trans in right now but if a $350 part guarantees a long life span I'd go that route. Anyone with experience with this part? Thank you.