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Old 08-10-2011, 10:57 AM   #1
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Join Date: Oct 2010
Posts: 24
Supplemental transmission cooler


I have a 2004 gmc Yukon Denali Xl with the tow package. My transmission temp hovers between 200-220 worst case (really hot days going up steep hills), while towing. Want to add an additional trans cooler to the factory cooler that inside the radiator. Any recommendations on brand and model for this particular SUV.

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Old 08-10-2011, 11:51 AM   #2
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Location: Rio Grande Valley Texas
Posts: 357
HERE is ONE on amazon. It'll tell you if it fits your vehicle. Or you can just search there for others that will MOUNT on the FRAME RAILS of your SUV.


Ruben Zamora
2007 Silverado 2500HD 4x4 Dmax/Allison, 4" Exhaust-no cat-no muffler
2012 Palomino Puma 23FB
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Old 08-10-2011, 01:41 PM   #3
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Join Date: Aug 2011
Location: Iowa
Posts: 34,205
a supplemental cooler may not fix your needs but it may .heres a few other things to check.
1) condition of cooling clutch fan ( you can buy hd ones for towing) if it has alot of miles it may be getting week.
2) condition of radiator ( possibly needs flushed)
3) install a supplemental electric cooling fan .

also i noticed you have a a towing package most of those had a remote cooler in front of a/c condenser ?
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