Hi, I've got 1984 Custom Deluxe Blazer and I wanted to replace the old rusted out tailgate (manual rear window) with a nicer one with the power window. The one that I've found is from a 1985 and I am wondering if those two would be interchangeable. I assume it woudln't be too hard to wire up, so thats really not much of a concern. I just want to make sure it will bolt up and close right. Thanks in advacne for you help.