I'm trying to find a good external cooler for my 4L60E that I run on my 6500 lb Tahoe gunning it from stop light to stop light in 97°f + with 3.42 : 1 gears. Right now it has the factory external cooler in addition to the factory radiator cooler all OEM parts.Its actually far from being big enough for your application. Will work on a lightly loaded van, but work it hard uphill with 5K behind it and you will smoke that 4L60E from burned fluid in no time.
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