Like most radiator manufacturers, Cold Case radiators come in various configurations, you didn't say which one you have. Also, how you control the fans has a lot to do with the installation.
Darale offers several electric fan/shroud configurations. I have one of their dual fan setups on my truck and it works great.
Here's a link to the Derale fans offered by Summit:
https://www.summitracing.com/search?...=derale%20fans