What you want is possible to a degree. You can replace the model but all the drawing dimensions will become Disassociated and you will have to Re associate them one at a time. The best idea would be to create the first model and 2D drawing and save. The Copy from the Data Panel and be sure to include the drawing. Once copied, open up the new model and edit it with the small changes you mentioned and the copied drawing will update automatically. Since you said the changes were small, this will be the best procedure.
John Hackney, Retired
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