Cooler Q's - Pirate4x4.Com : 4x4 and Off-Road Forum

4x4mike · 07-05-2006, 02:56 PM

I want to install a transmission cooler on my truck. The 700r4 is about 2 years old and is connected to the factory cooler. I have metal lines going from the transmission to the radiator.

Can I totally bypass the factory cooler and use a bigger after market cooler?

What about the factory metal lines? Do I have to get rid of those entirely? The kits I have seen do not come with fittings into the transmission.

Will having the new cooler in front of the AC and radiator hurt the cooling and performance of those units? I do have a pusher fan but it barely fits behind the grill. The fan is on the drivers side. I wanted to put the cooler on the passenger side.

Any help including links to stuff you have used would help out a lot.
Thanks,
Mike

1967CJ5 · 07-05-2006, 04:20 PM

You would do better to run both. Run thru the radiator and then to the cooler and back to the trans.

GMCTruxrule · 07-06-2006, 07:26 AM

I used to run a big tranny cooler separate from the radiator, I have found that you can drop engine temps several degrees when bypassing the radiator.
I used my factory hardlines and just cut them up near the radiator and used aproporiate rubber oil lines and clamps to plumb into the cooler.
I would also recommend using the factory hardlines too, as they won't get snagged and rub and wear through.
There is no reason either that your performance or cooling should be affected by running a set-up like this.

07-05-2006, 02:56 PM	#1 (permalink)
4x4mike Registered User Join Date: May 2005 Member # 47848 Location: Sacramento,CA Posts: 738	Cooler Q's I want to install a transmission cooler on my truck. The 700r4 is about 2 years old and is connected to the factory cooler. I have metal lines going from the transmission to the radiator. Can I totally bypass the factory cooler and use a bigger after market cooler? What about the factory metal lines? Do I have to get rid of those entirely? The kits I have seen do not come with fittings into the transmission. Will having the new cooler in front of the AC and radiator hurt the cooling and performance of those units? I do have a pusher fan but it barely fits behind the grill. The fan is on the drivers side. I wanted to put the cooler on the passenger side. Any help including links to stuff you have used would help out a lot. Thanks, Mike __________________ [QUOTE]Yep, no sissy poser no use other than look good pansy crap on my truck! Jason Payne [/QUOTE] 1999 4Runner

07-05-2006, 04:20 PM	#2 (permalink)
1967CJ5 Registered User Join Date: Jan 2005 Member # 42217 Location: Coos Bay oregon Posts: 196	You would do better to run both. Run thru the radiator and then to the cooler and back to the trans. __________________ Open season on illegal immigrants? Count me in.

07-06-2006, 07:26 AM	#3 (permalink)
GMCTruxrule Registered User Join Date: Aug 2005 Member # 51243 Location: Tropical Paradise Posts: 3,410	I used to run a big tranny cooler separate from the radiator, I have found that you can drop engine temps several degrees when bypassing the radiator. I used my factory hardlines and just cut them up near the radiator and used aproporiate rubber oil lines and clamps to plumb into the cooler. I would also recommend using the factory hardlines too, as they won't get snagged and rub and wear through. There is no reason either that your performance or cooling should be affected by running a set-up like this. __________________ [COLOR="Lime"][B]1999 Chevy K3500, 5.7/4L80E/14FF/stock/stock/stock[/B][/COLOR]

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