What's the Largest External Trans Cooler?

[66nova]

The Tru-Cool 40k is pretty much the best transcooler on the market.


Sent from my iPhone using Tapatalk

 

[bubbatrucklover]

Rockauto listed a 5 speed model that specs showed it was larger. It was a couple of hundred dollars though, iirc. As long as you get hydraulic replacement hose it won't burst, you just need to make sure it can't slip off the cut tube. I've seen people just push the rubber hose over the end of the male end of the pipe that would go into the disconnect and then clamp it. No way it would slip off that way.

Back to the Hayden unit I referenced, I don't know if they make a disconnect fitting with female threads, which is what would be required on the Hayden unit. We've never done it as I noted because we just construct a total new set of lines in our shop, so as to avoid the leaking lines GM has installed over the years, especially recently. If there is a proper fitting and the flares can be removed then it should be almost direct fit. I know Hayden and others sell a short piece of metal tube with the male barb on it that fits the female disconnect fitting. You could flare the other end, after placing the threaded "nut" on the tube.

Just thinking about this, you could cut the male disconnect end then flare it and go directly to the Hayden unit, providing you have enough tube after the 90 degree bend in the line to allow the nut to be placed and then flared.


Anyway, some ideas for ya.

That all sounds like good advice but, I particularly like what I highlighted. The flaring and all is outside my comfort zone. Thank you so much for helping put my mind at ease. I'm not saying a few hundred dollars ISN'T worth saving a trans BUT, if I can get the results I want more economically, it's a no brainer.

 

[bubbatrucklover]

The Tru-Cool 40k is pretty much the best transcooler on the market.


Sent from my iPhone using Tapatalk

DEFINITELY worth checking into and budgeting for. Thanks.

 

[66nova]

DEFINITELY worth checking into and budgeting for. Thanks.

In my 2007.5 Silverado with a 6.0, supercharger and a 4L80 swap. I was running a 2500-3000 stall converter and a Hayden aftermarket transmission cooler. It would not keep temps with normal driving below 200. All I did was swap to the tru-cool 40k and I ran temps 150-160 all day long. It would rarely hit 200 even while towing my drag car with a 27 ft enclosed trailer.


Sent from my iPhone using Tapatalk

 

[bubbatrucklover]

In my 2007.5 Silverado with a 6.0, supercharger and a 4L80 swap. I was running a 2500-3000 stall converter and a Hayden aftermarket transmission cooler. It would not keep temps with normal driving below 200. All I did was swap to the tru-cool 40k and I ran temps 150-160 all day long. It would rarely hit 200 even while towing my drag car with a 27 ft enclosed trailer.


Sent from my iPhone using Tapatalk

Well you have me sold and while looking on amazon I found a customer who shared this:



That's basically what I'm looking for.

One customer said this, " I've seen a lot of pics with people installing with the ports down but this design is definitely suppose to have the ports up otherwise you are trapping air inside and not filling the cooler preventing max performance of cooler. This is NOT self bleeding."

What are your thoughts? Did you do like the video or up like he said? I mean the factory cooler is mounted down so I don't see why he is contradicting GM's design. Not to mention pretty much EVERY aftermarket cooler is shown the same.