Fordman, you wrote this:
the first thing is check the fuild level while it is running. if it only shifts hard while shifting between first and second replace the
modulator. the third thing to check is to make sure the vacuum hose on the modulator is good and the other end of the tube where it hooks onto the engine is good also. then it maybe time to rebuild it after that or possibly
adjust the bands.
removing the transmission isn't hard if you have afloor jack. rebuilding it you will need a spring compressor for the
drums to r and r the rubber seals in the pistons in those drums. i have never been able to take a
vavle body apart and put it back together and have it work right or at all so i usually just clean it and put it back in.
Lots of good info, but I underlined the stuff that I had never herd of before.