I have been doing some research on upgrading to a 6.0 cooler. I called a friend that works for Ford and his best price for an OEM cooler(assuming 26 row) is $330.00.
I just came across this Dorman trans cooler that is 31 rows for $153.00. Does anyone have any feedback on Dorman ?? Is it a quality product or am i gonna get what i pay for?? Thanks guys!

2005-2010 Ford F250 Super Duty Automatic Transmission Oil Cooler - Transmission - Dorman 05-10 F250 Super Duty Automatic Transmission Oil Cooler - 18249-05337138 - PartsGeek

 

I can't say good or bad things about dorman, I can say to hit up salvage yards and craigslist. Look for wrecked trucks if you are not in a big hurry to get a cooler. I got mine for about 50 bucks used. just my two cents.