Do I need an external tranny cooler?

[jcb9089]

As I'm finishing up this build, a lot of details need to be ironed out and of course the money is adding up. This will not be a crawler and rarely see off road.

Do I need an external tranny cooler or is the internal transmission cooler in the radiator fine? Thanks!

Rebuilt 351 with a rebuilt c4
4:10 gears and 35" tires
Explorer 6 cyl radiator with trans cooler

 

[blubuckaroo]

Since you have 4.11s I'd say you're good without adding an aux cooler. It would be different if you were trying to roll those 35s with 3.50s. Add the aux cooler if you start pulling a trailer or start crawling.

 

[jw0747]

best to install a trans temp gauge and see if what you're currently running is keeping the C4 cool. always good to have a temp gauge for both engine and trans.

 

[Broncobowsher]

It will be fine. No crawling and rarely offroad helps. You have decent gearing for the tire size. Will you have perfect, labratory grade conditions? No you won't. But you don't need it. The C4 is a good trans that works even if things are not absolutly perfect. What you have will be fine, don't worry about it and just drive it.

 

[jcb9089]

That's good news, I really didn't want to drop another couple hundred in a trans cooler. Thanks!

 

[red hot71]

Temp gauge would be nice. And something else to look at.

 

[sprdv1]

it will be fine. No crawling and rarely offroad helps. You have decent gearing for the tire size. Will you have perfect, labratory grade conditions? No you won't. But you don't need it. The c4 is a good trans that works even if things are not absolutly perfect. What you have will be fine, don't worry about it and just drive it.

x2............

 

[Crawdad]

Derale makes some affordable coolers if you need it later on. I got one for my PS pump. Can be used for transmission coolers as well. My application was needed for the 37s I once had. Now with 33s it runs just fine with my 351. My trans lines go to a 3 core Champion radiator with a 190 degree.

 

[KyleQ]

Knowing the temp wouldn't be a bad idea... Heat is the #1 death of an auto-