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Transmission cooler stock or optional on an '04 Titan?

5408 Views 26 Replies 9 Participants Last post by  titan14
I posted this question under another thread, but started this post to get more exposure to my question with more detail.

Being new to Titans, having just bought a 2004 LE, mine appears to have two radiators with a fan both inside and outside. Lines run from the tranny up to the radiator(s) and back to the tranny. Did the 04 come with a trans cooler as standard or an option?

I have already established that i have the 3.36 gears for towing (engine turns 2000 rpms at 70 mph), but have no tranny temp gauge. I do not have the off road package that has the 3.36 gears, as i have 18" wheels and no skid plate. I was planning to buy a tranny cooler, but looked under the hood and see the two radiators, or at least it appears to be two of them. fron beneath the truck, i can put my fingers up between the two radiator cores. Else, why would there be two fans unless there are two radiators there?
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OR.....jack up the drive wheel, get under the truck with a crayon. Put a hash mark on the drive shaft and a hash mark on the inside of the tire. Spin the tire one full rev while counting the revs of the drive shaft hash mark. Should be just past three shaft revs for one wheel rotation. In 15 minutes you'll know what's what and have your jack put away with no tools to clean up after a drain, ring count and fill that takes a couple of hours.
I was taught this when I was twelve years old....been doing it this way for 56 years.
I feel like you would notice only a marginal difference between 2.94 and 3.36 or even 3.13 with this technique. The ratios might be too close to tell ant measurable difference. For accurate calculations, count ring and pinion teeth, for rough guestimations, use the count driveshaft and axle shaft revolutions.
It would be similar to the second hand on a clock being at 25 minutes after the hour or 50 minutes after the hour. Now....if that's a problem.......

When I was a kid, my older cousin was into building drag racers with his friends and let me hang, and learn. In the sixty's everyone was a shadetree. This is how they 'clocked' rear ends in the junk yard to see what they were buying since there weren't tags or in most cases even wheels on them.
You'll have to turn the drive shaft and watch the tire said:
If both rear wheels are off the are correct. I indicated in my first post that only the drive wheel should be lifted clear for rotation....this spins the's a vid to prove the point.

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