I have a 1990 with the rear door window " rubber seal" that was coming off.
I really do not know the name of that. Its the rubber thing that goes around the driver side rear door window at the outside part of the door. anybody can help me where to find the replacement? help help please.... thanks in avance.. I will appreaciate your help...

You're going to have to go to the dealer for door/window seals and gaskets. Too specialized for a parts store.

...and if they are the exterior seals, they are a bitch to replace. Good luck!