Last week, due to some rain, I had to put the t-tops on my 78. I noticed that when they were installed, there was a "gap" of about 2" between them. They were in the holes and locked down tight. I would think that they would butt up against each other when they were on. Am I wrong? If not, I wonder what year these (mirror coated) t-tops actually fit. It's not a big deal as I plan on replacing them next year anyway (they have cracks in the outer glass). Just seemed curious to me.