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Transmission cooler

Fnp5150
Explorer
Explorer
I'm new to the RV life and am concerned over the need for a transmission cooler. I will be towing a 26 foot Jayfeather weighing 5050lbs fully loaded, 4500lbs dry. My tow vehicle will be a 2007 Expedition with 5.4 motor. It's tow rated at 6000lbs. without the towing package and 8500lbs. with the package. Mine doesn't have it. I'm not too concerned about the engines ability to pull it, but since I'm close to the 6000lbs should I worry about burning up my transmission and install a cooler? This would have been standard with the tow package. I do live in South Georgia where it gets HOT. Will be traveling with 2 adults and 3 kids under age 10. Would synthetic transmission fluid help also? I've only pulled it about 20 miles from the dealer and the transmission temp did go up just a little, and I had overdrive turned off.
18 REPLIES 18

dockmasterdave
Explorer
Explorer
Yes. I tried pulling a 4700lb loaded , TT on the flat ground in FL with a 4.6 v8, and almost burned one up.
It's a cheap and simple upgrade.
You can buy one on the net, that is a factory direct replacement. It snaps into the factory bracket that should already be there.
You probably want to pick up an extra few feet of hose. They seem to cut it pretty close from the warehouse.
2014 F 150 ecoboost
2008 Chrysler Aspen
09 Amerilite 21 (modified)
2013 Bendron 14' enclosed cargo
2011 4x8 open cargo

Jack_Diane_Free
Explorer
Explorer
Agree you should get a cooler.

Fnp5150
Explorer
Explorer
Thanks for the quick reply, I edited the post a little. Could you take another look at it?

the_bear_II
Explorer
Explorer
I would add a transmission cooler just for ease of mind. Heat can quickly kill a transmission. Long climbs will run the trans temp up.