Will 97 summit 670 gauges work in my 99 summit 670? They look the same and I just bought them. Thanks, Garrett.

To answer my own question, Yes, they do fit. I just put them in and the only thing you have to swap out is the wireing on the back of the tach, the 97 plugin was a four prong and the 99 is a two prong, but they swap out with two screws and about 3 minutes of your time.