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Unread 03-01-2013, 11:58 AM   #1
Rosental1
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1991 FSJ Wagoneer 
 
Join Date: Feb 2013
Location: Closter, NJ
Posts: 64
auxilary transmission cooler

I have a 1991 wagyy with factory towing package.

Just got a new aluminum radiator that is supposed to cool transmission as well. I'm not sure if I can get rid of the auxilary transmission cooller that's stuck in the front of the car or do I need to keep it.

I don't plan of using the car to tow anything heavy or for any distance.

any input from people who swapped radiators is welcomed!

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Unread 03-01-2013, 06:20 PM   #2
pleontks
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1976 J-Series Truck 
 
Join Date: Apr 2010
Location: Whetstone, Az
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You can keep it or toss it. I would keep it. Your old radiator probaby has the tranny cooler in it as well.
Keeping it will keep your tranny temps down a little, and who knows when you'll have to tow something. Especially if you have a tow hitch
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Unread 03-03-2013, 07:42 AM   #3
Rosental1
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1991 FSJ Wagoneer 
 
Join Date: Feb 2013
Location: Closter, NJ
Posts: 64
Thanks for the input.

I was hoping to hear from people that upgraded to an aluminum radiator and ditched the old tranny.

The pipes to the auxiliary seemed almost clogged on mine .........
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Unread 03-03-2013, 08:15 AM   #4
timgr
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1975 CJ6 
 
Join Date: Dec 2012
Location: Medford, MA
Posts: 465
You need a transmission cooler of some kind.

You can use the one in the bottom of the radiator, or the auxiliary. A typical installation plumbs the auxiliary in series after the factory cooler in the radiator.
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Unread 03-03-2013, 08:41 PM   #5
RockRollin
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1990 FSJ Wagoneer 
 
Join Date: Apr 2012
Location: Grand Haven Mi, USA
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Really no reason to ditch it unless your worried about leaks. I would keep it and replumb it, a cooler tranny is a happy tranny.
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