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Old 10-19-2020, 09:22 PM   #1
lux
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Join Date: Oct 2016
Location: Austin, Texas
Posts: 306
Trans cooler?

I have a 383 with a Th400. I also have a Champion aluminum radiator with trans cooler.
I will not be towing in this 1969 short bed 1500GMC.
Do I need to also add an external trans cooler in addition to the radiator trans cooler?

I've searched a lot of threads on this site and I'm still confused.
Thanks
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Old 10-19-2020, 09:36 PM   #2
geezer#99
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Re: Trans cooler?

No.
It’ll be fine.
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Old 10-19-2020, 09:37 PM   #3
AussieinNC
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Re: Trans cooler?

Quote:
Originally Posted by lux View Post
I have a 383 with a Th400. I also have a Champion aluminum radiator with trans cooler.
I will not be towing in this 1969 short bed 1500GMC.
Do I need to also add an external trans cooler in addition to the radiator trans cooler?

I've searched a lot of threads on this site and I'm still confused.
Thanks
A 383 and TH400 will not overtax either a tank based cooler or a standalone cooler.

If you have the space to place an aftermarket trans cooler so it has sufficient air flow, I usually install one....

How its plumbed is always a matter of personal preference...

Unless requested by an owner, I always install the aftermarket cooler as a stand alone cooler, totally bypassing the radiator cooler....why?

Doing so eliminates the possibility of coolant making its way into the trans by a faulty cooler setup inside a radiator tank.

(I also cap off where the original cooler line fittings are in the radiator tank)

I can see you are in Austin TX...so extreme cold wont be an issue....

In colder climates sometimes a customer will want the radiator cooler retained in the system,,,,but they are always warned of possible issues.

Hope this helps...
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Old 10-19-2020, 11:59 PM   #4
lux
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Location: Austin, Texas
Posts: 306
Re: Trans cooler?

Thanks for the replies.
I want to keep it simple and inexpensive. It's just a cruiser so I'll try first with just the radiator trans cooler.
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