Originally Posted by CrawlerXJ

From radiator to pulley is 3.5" for me since I have a 3 row radiator.

This was all I found with the highest CFM
http://www.summitracing.com/parts/prm-19126/overview/

Originally Posted by hidperf

That's a 16" fan. I can't imagine that fitting. The radiator core is only 31" long and 11" high if I remember correctly. I didn't measure my 3-core, but I did measure my 2-core that's out of the vehicle right now. I doubt the core area is that much different.

I'd much rather run two bigger fans that would equal the airflow of the 3x10" setup. But at 7,050cfm, I doubt I'll find two fans that will fit and move an equal amount of air.

I'm very interested in your setup once it's complete. Keep us updated.

Originally Posted by Lyon

I don't have a part number from Derale. I ordered this off of ebay a while back. I don't have the original box anymore but I remember it being slightly weird that it had no labeling on it except for FF. I later found out that it was through FF Dynamics and my mistake on the fan size. I original stated it was a 16 inch when in fact is was a 14 inch. I still have some of the paperwork and it lists FFD14. I went back to try to locate the exact fan and I can't find it.

Now remember, you can only use this fan if you are doing the transfer case drop. If you eliminate it, the bolt/studs from the fan clutch pulley will hit the fan casing and it will be no good to you. This is why I converted to the dual stock AC fans. The stock fan pulls more air anyway IMO.


AC Stock fan depth



Derale/FF Dynamics 14" fan depth



The pictures look like the stock fan is actually deeper. The shroud itself is slightly deeper, but the way the fan is notched out gives the entire assembly room to clear the fan clutch bolts. Also, the stock AC fan tucks in tighter when mounted giving more clearance.