I found out that my passenger rear door wasn't locking and all the others were. I popped the door panel and the assembly was frozen so I drilled out the four rivets so I could remove the entire part. Having done that I can now lock and unlock the door manually with the door panel off...Not the solution for which I was looking. So is this an entire assembly that is replaced? Have I committed a grievous error by drilling out the rivets? Anyone have a part number and a good suggestion where to get this on the cheap other than a wrecking yard? Is there a better way to spend a Saturday night?