When slowing down, everything is fine, until its almost time to fully stop, then the car acts like it is going to die. if I put the car in nuetral, then stop, its fine, it only does this in drive and at a very slow speed.

Are there codes in the transmission computer? Likely the torque converter clutch is not disengaging or a holding member with the transmission could not be releasing. this could be caused by a faulty shift solenoid or a mechanical failure with the transmission. Check to ensure the transmission shift properly under all conditions. Also, stall test the torque converter, put it in gear hold the brakes firm and throttle the engine. Generally the torque converter will stall out around or above 2,000 rpm. If it stalls out much lower, check the torque converter clutch solenoid for proper operation.

Again, check the transmission computer for codes. You will need an advanced OBD1 scan tool which can communicate like a hikock scan tool ( ford factory for that era)