700R4 cooler for a 4L80E trans?

[347strokin]

I'm nearing completion of my LS swap in my 87 1/2 ton. Do you gents think the stock 700R4 cooler will be suitable to cool my 4L80E trans?

Thanks!

 

[75gmck25]

Are you using the standard in-radiator cooler, or a separate trans cooler?

For a truck driven like a passenger car (very little load), you can use just about any cooler, but if you plan to tow or haul with it I highly recommend a new stacked plate cooler.

My favorite is the Long Low Pressure Drop (LPD) cooler in the largest they have available (24k lb rating, etc.). Then hard mount it with metal brackets so it does not touch the radiator. The LPD unit uses a passive temp sensor to control flow so that it limits flow when the transmission is cold, and then allows max flow when it warms up. http://www.trucool.com/products/tru-cool-lpd

If you look at the B&M coolers I believe the high capacity units are a repackaged Long cooler. Ford's OEM coolers used to also be the same design, but I haven't checked them lately.


Bruce

 

[smoothandlow84]

I had a B&M super transmission cooler on my diesel (duramax) truck. It worked flawlessly. I towed up to 18,000 pounds (fifth wheel trailer) and noticed a droo in transmission temps when compared to the oem installed cooler. The stacked plate deisgn makes the difference in cooling capability.

If you are just driving the truck and not towing...then a standard transmission cooler (Perma cool) will also work. I always install transmission coolers on all of my trucks since emps here in Az can reach 112 degrees. Heat kills transmissions so it makes sense to dissapate as much as possible from the transmission whether you tow or not. Just size the cooler appropriately for your application. I have never been a fan of the in radiator coolers since they are surrounded by hot coolant and are quite small. When your motor runs hot...the coolant gets hot...and it transfers heat to the in radiator cooler. Installing a remote mounted transmission cooler OUTSIDE of the radiator exposed to outside air...it obviously cools more efficiently.

You can also add a fan to the transmission cooler to further decrease the oil temp (I had a fan mounted to my transmission cooler as well). The fan, when on would drop the temp by 15 degrees within minutes of operation.

 

[347strokin]

Are you using the standard in-radiator cooler, or a separate trans cooler?

For a truck driven like a passenger car (very little load), you can use just about any cooler, but if you plan to tow or haul with it I highly recommend a new stacked plate cooler.

My favorite is the Long Low Pressure Drop (LPD) cooler in the largest they have available (24k lb rating, etc.). Then hard mount it with metal brackets so it does not touch the radiator. The LPD unit uses a passive temp sensor to control flow so that it limits flow when the transmission is cold, and then allows max flow when it warms up. http://www.trucool.com/products/tru-cool-lpd

If you look at the B&M coolers I believe the high capacity units are a repackaged Long cooler. Ford's OEM coolers used to also be the same design, but I haven't checked them lately.


Bruce

Hey sorry for the late reply! It's a separate trans cooler mounted behind the rad. The truck will never see a load. Just a daily summer driver with the odd smoky burnout.

 

[347strokin]

I had a B&M super transmission cooler on my diesel (duramax) truck. It worked flawlessly. I towed up to 18,000 pounds (fifth wheel trailer) and noticed a droo in transmission temps when compared to the oem installed cooler. The stacked plate deisgn makes the difference in cooling capability.

If you are just driving the truck and not towing...then a standard transmission cooler (Perma cool) will also work. I always install transmission coolers on all of my trucks since emps here in Az can reach 112 degrees. Heat kills transmissions so it makes sense to dissapate as much as possible from the transmission whether you tow or not. Just size the cooler appropriately for your application. I have never been a fan of the in radiator coolers since they are surrounded by hot coolant and are quite small. When your motor runs hot...the coolant gets hot...and it transfers heat to the in radiator cooler. Installing a remote mounted transmission cooler OUTSIDE of the radiator exposed to outside air...it obviously cools more efficiently.

You can also add a fan to the transmission cooler to further decrease the oil temp (I had a fan mounted to my transmission cooler as well). The fan, when on would drop the temp by 15 degrees within minutes of operation.

Thanks for the info! I think I'll be good with the separate trans cooler I have then.

 

[Derick C.]

I use this same trans cooler on both my trucks. Made my own lines, the feed line goes to the radiator then to the cooler before returning to the trans.

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[Honky Kong jr]

I use a B&M stacked plate...

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