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Old 08-18-2014, 10:23 PM   #1
MidwestMan
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Universal trans coolers.

Finally got my trans back today from being rebuilt for my 87, took over a month to get back. I was advised to run an external trans cooler, what's the biggest one I can get away with? Would this suffice?

http://www.jegs.com/webapp/wcs/store...&storeId=10001
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Old 08-19-2014, 07:29 AM   #2
gchemist
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Re: Universal trans coolers.

Most are rated by GVW. I installed one large enough to cover half the radiator. Basically from the center hood bracket all the way to the radiator end. I used SS braided hoses and AN fittings.
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Old 08-19-2014, 08:08 AM   #3
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Re: Universal trans coolers.

if i recall you want your trans around 175??so a gauge might be helpfull too. also call the trans shop and see what tthey say is best
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Old 08-19-2014, 08:44 AM   #4
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Re: Universal trans coolers.

Quote:
Originally Posted by gchemist View Post
Most are rated by GVW. I installed one large enough to cover half the radiator. Basically from the center hood bracket all the way to the radiator end. I used SS braided hoses and AN fittings.
I guess you can't have to much?
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Old 08-19-2014, 09:59 AM   #5
old Rusty C10
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Re: Universal trans coolers.

I went and got the largest one I could get for my work trucks.. the larger the trailer its towing the bigger the cooler you need
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Old 08-19-2014, 10:23 AM   #6
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Re: Universal trans coolers.

I live in a hot climate area, Texas. The more cooling the better. In the winter, yes, I can tell trans temps takes a few miles to warm the oil. The trans shifts harder in cold weather until oil temps are up. I drive slower in cooler weather so oil has time to heat up. If I remember correctly, mine is rated for 24,000 lbs GVW. Mine is routed inline with the radiator cooler.
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Old 08-19-2014, 10:41 AM   #7
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Re: Universal trans coolers.

Use your Original Radiator cooler as well. Plumb the extra cooler after the radiator in your flow path.
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Old 08-19-2014, 07:28 PM   #8
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Re: Universal trans coolers.

x2^^^hook up your cooler after the factory one. i'm running a 30 000 lb B&M cooler on my crew, & if you want a few more degrees cooler & easier oil changes, pick up a Derale cooling tranny pan. the extra cooling & capacity is nice, but not getting an ATF bath really makes it worthwhile
http://derale.com/products/transmiss...s/cooling-pans
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Old 08-20-2014, 12:09 AM   #9
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Re: Universal trans coolers.

I installed a Tru-Cool LPD (low pressure drop) cooler after building my 700.
I went with this one:
http://www.transmissioncoolers.us/4589.html
Fit nicely on one side of the radiator. Used their engine oil cooler version on the other side.
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Old 08-20-2014, 01:19 AM   #10
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Re: Universal trans coolers.

I should note fellas this is mainly gonna be my winter/huntin/spare truck rig, not my daily driver so it won't suffer the kansas heat like my blazer.
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Old 08-20-2014, 03:28 AM   #11
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Re: Universal trans coolers.

on those DERALE pans with the temp bung can an analog water temp gauge be used to monitor temps ????
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Old 08-20-2014, 10:40 PM   #12
MidwestMan
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Re: Universal trans coolers.

Just ordered one of these.

http://www.jegs.com/webapp/wcs/store...=&pgGrp=search
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Old 08-21-2014, 12:32 AM   #13
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Re: Universal trans coolers.

Probably not worth mentioning but I will anyway.
Be sure both factory and aftermarket trans coolers fluid flow is bottom to top not top to bottom.
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Old 08-21-2014, 01:56 AM   #14
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Re: Universal trans coolers.

Quote:
Originally Posted by MidwestMan View Post
good choice!

i have an older Derale pan & it does'nt have the temp bung so i'm not sure, you can try one off a later model diesel, threads are pretty common
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