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Old 06-24-2007, 01:36 PM
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external trans cooler for 700r?

I am considering a external cooler for my 700r trans. It's in a 88 GMC Sierra 2wd with a 383 engine. I've got a Be Cool radiator that is cooling things now. Today I was driving around and the trans temp got up to 200 degrees. From what I've read on previous posts on this subject around 160 to 180 is optimal. What external cooler would you guys buy, frame rail or one that mounts near the radiator? I live in South Dakota so it gets plenty cold here. Thanks.

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Old 06-28-2007, 04:32 PM
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Car quest and napa sell the make it so you can bypass it for winter use.
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Old 06-29-2007, 04:40 AM
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One of the most effective brands is the Long Tru-Cool Low Pressure Drop (LPD) cooler, which is also sold under the B&M brand name. The larger Long coolers have a thermal bypass that allows fluid to bypass the cooler circuit when it is cold. Most of the long coolers also come with metal mounting brackets, not the plastic pu****hru mounts that go on your condenser.

This is one place that sells the long coolers, but there are others.

This transmission place in Saskatchwan highly recomends the Long coolers for cold weather. http://www.abletrans.com/faqs.html

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