Window regulator

[Wilkyinnh]

I have a 1966 Chevelle 4 door no post Hardtop and in need of either some good advice or a new part. I'm now wondering if the window regulators are different in a 2 door coupe compared to my hardtop. I ordered and recieved from Ecklers a new passenger side window regulator and it is the wrong part. I called Ecklers in reference to this only to be told that because it was an "internet" order that I got what I ordered. In the description it doesn't state if it's a 2 door or 4 door. Is there a different one that someone makes because all the ones I'm finding are the same as the one I recieved?