Tim look here. It a dual not triple.
http://www.nextag.com/gauge-pod/search-html

I get them from Hewitt. Here are some like mine just scroll down.
http://www.hewittindustries.com/instruments.htm
He is cheap and good but you need to talk to bruce dankmeyer.
Bruce Dankmyer [b.dankmyer@hewittindustries.com]
They sell to the public but you need to speak directly to him at:
714-897-7632.
They are not the fancy blue ones like yours but they stand behind their work.

What is the benefit to a oil temp.?

 

After looking at the Dodge pod I kind of like that but I may try the dual underdash first since it is cheap. That way I don't have to cut the dash.

 

I tried to buy that "cheap" pod and the shipping was more than the item was. Not as good a deal as I thought.