I have a 91f-150 n need a passenger door what years are compatible?

 

As far as the sheet metal, any 80-96 F-series or Bronco door will work, as well as 97 F250/350 HD. To make the swap easier, I would try to get as close to your truck's year as possible to match trim pieces and mirror mounts, etc.

 

Yep- '87-'91 will be an easy bolt up, '92-'96 will work but some brackets, holes, etc will need to be reworked.