I did an 18" fan in my truck, my fan had its own radiator mount-shroud it fit inside my rad shroud all I had to do was cut a notch out of the bottom. I cut the notch a little short,cut along the bottom edge about 1" on each side the with a torch bent the ears down then put 2bolts in the top and 2 bolts through those ears then the factory shroud bolted right back in place. Forgot to take pics of the process but it worked out great.

 

Alright thanks 2000MTZ and I'm not sure where to find the relay cause.online they have just about every kind I can find

 

I got mine at advance auto, a regular 4 prong 40amp relay works, then I got a 30amp LED switch I think.

 

Ok ill check there. Will it come with the wire that runs up to the battery? Seeing as I don't have anything but the fan. I need the block that the relay plugs into.

 

Get some 12ga wire and matching female connectors to slide onto the relay prongs.

 

Alright thanks. And happy thanksgiving everyone.