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elks 04-20-2013 09:19 PM

Radiator?
 
So my radiator is leaking a little. I am looking at replacing it, but need to know:

Do I have to have one that allows the transmission fluid run through the radiator or can I get a universal fit one and run the tranny cooler lines a different way?

What option/radiators should I consider? I am running an electric fan from the cherokee and the factory shroud. Need to keep that in place...

truckster 04-20-2013 09:27 PM

Re: Radiator?
 
I assume you have an auto trans. If that's the case, you need some type of trans cooler. The AT won't live long without it. You could choose to run an external cooler, but you would likely spend more doing it that way. O'Reilly has a 4-core radiator for less than $200 and it's all metal.

buckskins4ever 04-20-2013 09:31 PM

Re: Radiator?
 
Quote:

Originally Posted by elks (Post 6024463)
So my radiator is leaking a little. I am looking at replacing it, but need to know:

Do I have to have one that allows the transmission fluid run through the radiator or can I get a universal fit one and run the tranny cooler lines a different way?

What option/radiators should I consider? I am running an electric fan from the cherokee and the factory shroud. Need to keep that in place...

You dont have to have a internal cooler. I wanted a race radiator so purchased all aluminum from PRC and bought extra large cooler to mount on front side.

elks 04-20-2013 09:32 PM

Re: Radiator?
 
Quote:

Originally Posted by truckster (Post 6024475)
I assume you have an auto trans. If that's the case, you need some type of trans cooler. The AT won't live long without it. You could choose to run an external cooler, but you would likely spend more doing it that way. O'Reilly has a 4-core radiator for less than $200 and it's all metal.

The cooler set up on my truck has the hoses go through the radiator and then a small cooler on the front that it loops too. I was wondering if I can just skip the going through the radiator part and run straight to the tranny radiator/cooler?

Do you know a part number for the Oreilys radiator?

Stocker 04-20-2013 11:40 PM

Re: Radiator?
 
The auxiliary cooler in front of your radiator might not provide sufficient cooling by itself. I would just get the correct radiator (one with an internal trans cooler) and scrap the aux cooler *unless it's really needed for HD towing or hauling*.

cdowns 04-21-2013 08:24 AM

Re: Radiator?
 
the "cooler" in the radiator actually helps keep the tranny fluid at proper operating temps and gives longer life to transmissions

overcooling a transmission is a bad thing

Daddy Brim 04-21-2013 09:23 AM

Re: Radiator?
 
Quote:

Originally Posted by truckster (Post 6024475)
I assume you have an auto trans. If that's the case, you need some type of trans cooler. The AT won't live long without it. You could choose to run an external cooler, but you would likely spend more doing it that way. O'Reilly has a 4-core radiator for less than $200 and it's all metal.

Quote:

Originally Posted by cdowns (Post 6025099)
the "cooler" in the radiator actually helps keep the tranny fluid at proper operating temps and gives longer life to transmissions

overcooling a transmission is a bad thing

You also get lifetime warrentey with O'Reillys. Get rid of external cooler, unless truck is used for towing all the time.

elks 04-21-2013 11:39 AM

Re: Radiator?
 
Quote:

Originally Posted by Daddy Brim (Post 6025163)
You also get lifetime warrentey with O'Reillys. Get rid of external cooler, unless truck is used for towing all the time.

Anyone know the Part NUmber for the Oriely one? My local store is filled with worse than average IQ individuals. I could be there all day explaining what I need to them!!!

Thanks a bunch,

Stocker 04-21-2013 12:37 PM

Re: Radiator?
 
Quote:

Originally Posted by elks (Post 6025360)
Anyone know the Part NUmber for the Oriely one?

It might be helpful if you post your truck info.

Also, you should be able to look up the p/n on their website.

elks 04-21-2013 01:27 PM

Re: Radiator?
 
I have a 72 3/4 2wd long bed with the 350 and automatic tranny...

truckster 04-21-2013 02:13 PM

Re: Radiator?
 
Here's the info:


Murray Heat Transfer - Radiator
Part Number: 433369
Line: MHT

limited lifetime warranty
UPC: 845160071374
With Air Conditioning
With Maximum Cooling

Detailed Description

Specifications

Construction: Brass Tank/Copper Brass Core
Core Width (In): 17 Inch
Core Height (In): 28-3/8 Inch
Core Thickness (In): 2-5/8 Inch
Row Quantity: 4
Inlet Size (In): 3-1/2 X 18-5/8 Inch
Inlet Location: Top Left
Outlet Size (In): 3-1/2 X 18-5/8 Inch
Outlet Location: Bottom Right
Mount Type: Channel
Transmission Oil Cooler Included: Yes

elks 04-21-2013 02:35 PM

Re: Radiator?
 
Quote:

Originally Posted by truckster (Post 6025579)
Here's the info:


Murray Heat Transfer - Radiator
Part Number: 433369
Line: MHT

limited lifetime warranty
UPC: 845160071374
With Air Conditioning
With Maximum Cooling

Detailed Description

Specifications

Construction: Brass Tank/Copper Brass Core
Core Width (In): 17 Inch
Core Height (In): 28-3/8 Inch
Core Thickness (In): 2-5/8 Inch
Row Quantity: 4
Inlet Size (In): 3-1/2 X 18-5/8 Inch
Inlet Location: Top Left
Outlet Size (In): 3-1/2 X 18-5/8 Inch
Outlet Location: Bottom Right
Mount Type: Channel
Transmission Oil Cooler Included: Yes

Perfect, thanks a bunch.

MagmaJct 04-21-2013 06:26 PM

Re: Radiator?
 
Unless your external cooler has a fan, I recommend using it inline with the in-radiator cooler. At lower speeds when towing, or when going up a grade at low speed, vehicle speed may not be enough to cool the external cooler.

I haven't fixed it yet, but my 71 has only an external cooler and it gets mighty hot. Even begins to smell a bit. I'd like to re-route my lines when I get the time/money.

ecgate 04-21-2013 06:44 PM

Re: Radiator?
 
Before I tore my truck down for a off frame restoration my tranny lines were ran to a external cooling loop. My tranny ran very hot. When I rebuild it I plan on running the tranny lines into the radiator and then through a external cooler and then back to the radiator. It is a th400 behind a 402. Just my 2 cents but my experience is that the external tranny cooler doesn't cut the mustard.

cool1972gmc truck 04-21-2013 07:04 PM

Re: Radiator?
 
Quote:

Originally Posted by truckster (Post 6025579)
Here's the info:


Murray Heat Transfer - Radiator
Part Number: 433369
Line: MHT

limited lifetime warranty
UPC: 845160071374
With Air Conditioning
With Maximum Cooling

Detailed Description

Specifications

Construction: Brass Tank/Copper Brass Core
Core Width (In): 17 Inch
Core Height (In): 28-3/8 Inch
Core Thickness (In): 2-5/8 Inch
Row Quantity: 4
Inlet Size (In): 3-1/2 X 18-5/8 Inch
Inlet Location: Top Left
Outlet Size (In): 3-1/2 X 18-5/8 Inch
Outlet Location: Bottom Right
Mount Type: Channel
Transmission Oil Cooler Included: Yes

JUST BOUGHT THIS RADIATOR FOR MY TRUCK AND IT IS AWESOME!!!! IF YOU NEED ONE DEFINATLY GO WITH THIS!!!!!:metal:

Thumpuppet 04-22-2013 11:22 AM

Re: Radiator?
 
This 4 core is thicker, right? So if I go from a 3 core to this 4 core I will have to replace the upper and lower mounts (isolator and bracket), right?

mpreese811 04-22-2013 11:59 AM

Re: Radiator?
 
Not to hijack the thread, but I just bought a 72 with the 402 and TH400 and I am in need of a radiator. What came in those trucks a 3 or 4 core, and would the one mentioned above from oriellys work for my application as well? Thanks.


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