Trans Cooler

[speedkills]

Does anyone know?

The trans fluid lines going into the radiator - which line is fluid out of the transmission, the upper or lower line?

[sunsetorangess]

I would say the lower line.
J

[Red Chevy]

I would say the upper line, but the best way to find out is ask a mechanic, the other way is disconnect the lines and see which one the fluid pumps out of.

[performabuilt]

lower line is out on the 4l60e on the trans ,

[12secSS]

Trans Lines:
Lower = output
Upper = input

Cooler Lines:
Lower = input
Upper = output (this is to keep all debris in the cooler out of the trans, so fluid rises to the top while debris falls to the bottom)

[juiced99ws6]

Trans Lines:
Lower = output
Upper = input

Cooler Lines:
Lower = input
Upper = output (this is to keep all debris in the cooler out of the trans, so fluid rises to the top while debris falls to the bottom)

good info :)

[01Z28M6]

http://i5.tinypic.com/15504t5.jpg
The line with the rubber hose section is the hot output side from the transmission. As you can see, it enters at the base of the radiator. I know it is the hot line because I made sure of it when I installed my trans temp gauge sensor.

[hamburger68]

Question:
Do the 98 Z28s come with a stock trans cooler, or would that be a mod?
'Cos then i'd be getting one asap!

[12secSS]

Question:
Do the 98 Z28s come with a stock trans cooler, or would that be a mod?
'Cos then i'd be getting one asap!

All automatic transmission equipped vehicles has OEM transmission coolers. If you are using an aftermarket stall (looser then stock), you will need a bigger or supplementary cooler.

[hamburger68]

So, longer freeway trips at higher speeds (100+ mph) are no problem with the OEM cooler? I know that here in Germany, a lot of Chrysler/Dodge transmissions have heat problems at higher speeds over longer distances and die prematurely.
I have a 2.73 rear end, so the engine turns 2500 rpm at 150km/h (95 mph).
:fire:

[Orcus79]

an aux cooler is never a bad investment, cooler temps = longer life.

[hamburger68]

that was my thought, too.

By the way: Great avatar, just saw the movie (an hour ago).

[juiced99ws6]

http://i5.tinypic.com/15504t5.jpg
The line with the rubber hose section is the hot output side from the transmission. As you can see, it enters at the base of the radiator. I know it is the hot line because I made sure of it when I installed my trans temp gauge sensor.

how hard and how much was your trans temp gauge

[DANs1998Z]

so wich tranny cooler would you recommend? isit hard t install?is it better to cap off the radiator coolerlines and get an independent cooling system for the tranny

[1BADDLS1]

B&M off of Thunder Racing works great 24,000 $70
electric trans temp gauge, autometer $55

both easy installs with following write ups

[01Z28M6]

Yes, the B&M makes the stacked plate type cooler. These are supposed to be better than the finned tube style, or so I've been told. I could see right away the stacked plates are pretty much immune to smashed fins.