I am taking an existing part  with a drawing saved as an new part drawing refernce then Inserting an new surface part and relinking the features of the existing part to the inserted surface features. i have done this several times now with great sucess. Then updating the drawing files linked to the part. Unfortunatly I couldn't insert the surface part into the existing part with out it crashing. So I saved to surface part and Inserted the existing part in to it. rebuilt it then saved over new part. Now I have broken the the references  to the drawing is there any tool

that can allow re linking?