Check this out:
http://coloradok5.com/forums/showthread.php?t=81434
Now with that being said, I think the shroud design restricts air flow at highway speeds. In warmer weather at 70mph, I can watch the needle go past 210. The Ford Winstar fans are supposedly a (almost) direct fit for our radiators, I have yet to come across one, but I have been looking.
On a side note, A few months ago, I pulled a dual fan setup out of a later model Caddy, it really looked like it would work out nice, dual fans, high, med, and low speed for each. But, it was 2 inches too wide to fit on my radiator, between the charcoal canister and overflow tank. So, this last weekend, I went looking again, with a tape measure this time. I found a dual fan setup in a '92 caprice, that looks like it will fit with a little fabbing. On closer inspection, I saw that the fan motors on this setup and the Caddy setup appear to be identical, as well as the GM weatherpak connectors that plugs into them. So, what I am going ot do is take the wiring harness, with the three speed control from the Caddy fans, and plug them into the Caprice fans. It should work. I'll have to hook up the Caprice fans to a battery to do some current tests, but I see no reason why it will not work. Why do I need two fans with three speeds each? Hell if I know, but if I can make it work, then, cool, *bling*, I guess. I'll post up and tell ya if these fans will mount up with minimal fabbing. There were 5 or six more Caprice/Pontiac (Sunfire? I think) setupa at the yard, I am keeping my fingers crossed.
