Does the Radiator have a dual core coolant/trans? I looked under the runner and saw the fluid lines running to the bottom of it.

Is this good enough for towing or is another cooler recommended? I will be towing a uhaul 6x12 trailer later this month and want to make sure its ready to roll.

Thanks,
Jeff

 

With Toyota's Towing Package for the 3rd gen 4Runner, they included the TRD ATF aux cooler. I would recommend that you get that or another one with the same design or better

 

Tranny cooler is a must unless that trailer won't be loaded with anything and you are just driving around the corner. You can just grab one at Napa or somewhere and have it on in under an hour.

 

I will be going through the mountains of West VA so it sounds like it will definitely be needed.

Thanks for the help

Jeff

 

I am going to order the trailer lights kit from Etrailer, anyone know which transmission cooler I should get from there? What size fits the best?

Thanks,
Jeff

 

An extra in-line tranny cooler or even a bypass cooler is ideal for towing and or regular driving.
There are extensive threads on here regarding transmission coolers and the types recommended. Please search this.

 

I got mine from Derale. It's run in series with the radiator cooler and a remote filter with an oversized K&N filter. adds another quart of tranny fluid to the whole system. I run around 180 degrees pulling a 2000 pound boat.

 

I ordered a Hayden from Macko and installed it last week. Ready to tow!

 

To reduce heat when towing don't use overdrive. If it is a one time thing I would consider just changing the fluid after you are done towing.

 

good buys would be any of the following:

TRD ATF cooler - Toyota dealer
B&M TransCooler - Summit Racing
Hayden Cooler - Summit Racing
Tru-Cool LPD Cooler - IPT

get a cooler rated for at least 20,000 GVW