i have done lots of 904/727`s lock-up and non-lockup, but my tow veichle is a 97 dakota auto with 290,000 km on it, i need to rebuild it because it is setting trouble codes with the solenoids sticking on and plus the high milage, has anyone here rebuilt these, i would like to know what are the trouble points i should look for and what is the must replace parts on these over drive lock-up transmission