A-604 slips what are all possible causes and recommendations to fix it?

Question

P0700 (Transmission Control System -Mil Request), P0732 (Gear 2 incorrect ratio), P0734 (Gear 4 incorrect ratio) and P0403 (Exhaust Gas Recirculation Control Circuit). Problem originally, transmission slipping barely able to move all gears including reverse and loud screeching metal noise coming from torque converter. Mechanic replaced TC with new. Cleaned Solenoid Pack screens. Trans still slipped. MOPAR Trans Rebuild Kit installed and still slips forward, fine in REV. Went to limp mode. Have a good used old style Solenoid Pack with extra metal plate and uses 2 gaskets but do not know if compatible from 1995 to 1998 Caravan. All grounds check OK with a DMM. Anyone know of what to check next and what will fix this Transmission Problem?