They only made two different doors from 94-02. The doors off of a "quadcab" with rear opening doors have a "square" corner at the bottom rear, The doors off a regular cab or a "quadcab" without rear opening doors have a rounded corner. This is the way it was explained to me. I just went through this on my 01 after a slight crash. The square corner doors are much harder to find in this area of the country. The rounded corner doors are pretty available in the aftermarkets (partstrain.com has them for $421 I believe)
Bill