73-80 and 81-87 interior compatibility

[xbanone]

I have a 76 k15 GMC and an 81 c10. I recently bought most of the interior from another 81. Some of the stuff is for my 81 but I would like to use the guage cluster and some other items in the 76. 81-87 guages look and work so much better.

I did a trial fit on the guage bezel and it is so close to fitting it's not funny. Now that I have seen it in there I gotta have it. If I use the cluster from the 81 will everything fit together properly? I know the best answer is go ahead and try it, but maybe someone can save me some trouble if it doesn't work.

All of the guages are in the same place except mine has a brake light and the 81 has a clock. I have the guages, circuit board and trim panel. Is it a direct swap?

Thanks everyone