Transmission cooler ??

Again this will be installed in my 1990 K2500..

Is this the proper way to install a cooler in one of these trucks???Please note that it is spliced into the top tranny line...

http://i139.photobucket.com/albums/q301/southbound_bucket/1990%20K2500/DSC03896.jpg

I was told it should be in the bottom line and I'm thinking on it should be the first thing you see when you look through the grill...

Thanks...

It should be located in front of the radiator and A/C condenser...as you say it should be the first thing you see through the grille. This exposes it to the coolest air as the truck is moving. The location shown has the tranny cooler exposed to air that has already been heated by the radiator and condenser.

Thanks!!

That is what I thought too..

Now is the top line the right one to splice into???

What I need to know is if the lines are hooked up right???

Sorry this is late, hope it still helps.

Can't say without looking at my truck, but the hose that would go from the radiator back to supply the tranny would be routed to the bottom inlet of the cooler as you have it mounted. Then the top would become the outlet and be routed to the tranny.

Hard to see, but it looks like yours is hooked up correctly.

that is a good sized tranny cooler..this is the first time I ever heard / seen one installed in this location....might work good in alaska ..

when mounting in front of the ac condensor coils use some rubber spacers about 1/4inch thich so the tranny cooler has a space between it , and the ac coils ,,,

the cooler should go to the tranny return line,,this will create the greatest cooling effect on the fluid...so locate on the radiator the fitting where the tranny fluid flows out..

with a cooler that large you will also keep the engine temp down ..

the top line SHOULD BE the correct line ..tranny fluid should go into the bottom and out the top of radiator..

these lines can get crossed..

This was a pic of how I found it in my parts truck..When I installed it in my new 2500 I put it on the front of the ac condenser..The frist thing you see when looking threw my grill is the cooler...I did also run the line as you see here in the pic....

It should go through th stock cooler than into the aux cooler. Mount in front as already stated.

lax,

why would you use the stock cooler in the radiator? wont it warm up the fluid before going to the aftermarket cooler?

i've seen some just bypass the cooler from the radiator and just plumb the lines directly to the aftermarket

lax,

why would you use the stock cooler in the radiator? wont it warm up the fluid before going to the aftermarket cooler?

i've seen some just bypass the cooler from the radiator and just plumb the lines directly to the aftermarket

Best to go threw both.
The transmission needs some heat to warm the fluid to engine temt but also some cooling when pulling a load.
In real cold weather the oil can jell up in the aftermarket transmission cooler cutting of circulation and lubrication to transmission.
And always best to put a thermostat bypass valve in with the aftermarket cooler when running in cold weather.

Best to go threw both.

And always best to put a thermostat bypass valve in with the aftermarket cooler when running in cold weather.

with my other past vehicle I had a large tranny cooler, since I was towing 4,ooo lbs of boat , installed after the radiator cooler..in winter , when the temp got down below the 20deg f range. I would lack a good amount of heat..I would have tried that bypass valve for the winter use ...

I had to cover the tranny cooler with a piece of stiff plastic in winter ...then I got my heater temp hot ..

lax,

why would you use the stock cooler in the radiator? wont it warm up the fluid before going to the aftermarket cooler?

i've seen some just bypass the cooler from the radiator and just plumb the lines directly to the aftermarket

Best to go threw both.
The transmission needs some heat to warm the fluid to engine temt but also some cooling when pulling a load.
In real cold weather the oil can jell up in the aftermarket transmission cooler cutting of circulation and lubrication to transmission.
And always best to put a thermostat bypass valve in with the aftermarket cooler when running in cold weather.


No, the radiator cools the trans fluid. It will cool it to what it normally does, than the aux cooler will cool it further. Heat is a killer for a tow vehicle trans.

+1 on the temp bypass for winter.

thank you... good to know

i'll look into a temp bypass when i do my setup; gotta buy a hitch first :P

thank you... good to know

i'll look into a temp bypass when i do my setup; gotta buy a hitch first :P

Some transmission coolers are made with bypass in them.

Good luck