I recently needed to make a modification to a part. I had both the Drawing and the model open at the same time. I did a "save as" and renamed the the model for revision B. I got called away and forgot to save the drawing file. I ended up closing the drawing prematurely. Now I have a drawing at Rev. A and a model at Rev. B. What I am trying to do is change the reference to Model B so I don't have to completely detail the drawing from scratch. I already saved teh Rev. A drawing as a detached drawing so I would still have the Rev. A for reference.

How can I make a drawing reference the new model?