Hi people, my 89 2wd saph battery is currently dead and I need a new battery. Everyone keeps telling me I need an 097 one from Ford, but after speaking to them they say this means nothing. They have offered me two;

60ah 590
71ah 650

Does anyone know the finis for the correct battery and they are also telling me they may not fit in the tray.

at a lose end here.

any help appreciated