Interchangeable body parts for 1991 taurus

what years will Interchange with a 1991? I have been told 89-91 are the same. I'm looking for a set of doors. Is there an index on the net that covers this type of thing? Thanks in Advance.

86-91 are the same.

I had an 87 given to me and the doors measured diffrently. I did however find a 89 and it worked out great.