This might help, not sure on the author's accuracy though, I'll look for more references. I'm unqualified to tell you for sure since I did my swap, because my lines are no longer stock.

http://www.ecotecforum.com/forums/sh...mission-Cooler

However, I went from trans out, external cooler, radiator, back to trans input. Reason was same as "maven" in that thread stated. You can over cool trans fluid and the radiator helps to warm the cold transmission especially at startup, as well as cool the hot transmission. In that case, you'd want to hit the external first to cool it down to a manageable temp, then let the radiator stabilize the temp before returning it to the trans.

thanks for the link but thats not what im looking for. i need to know which one is the pressure line and which one is the return line? i have been running an external cooler for years but i bypassed the factory cooler, im upgrading to a slightly larger cooler and i want to put the factory cooler back in line before the external. i just dont remember which line is which?

james, if nobody has responded in a couple hours I will run across town at look at the 3400grandam and let you know....

cool, thanks.

headed out as soon as I can find the damn keys.....

did you ever find anything out?

Still haven't found the keys, I parked it a month ago, but haven't found anything out yet. I am headed to rapid city this morning to help my dad move. I'll stop at rapid chevrolet and let you know.

Thanks, Kyle

On my 2002 the top line out of the trans goes into the top of the radiator. (That's checking from above, but I'm 99% sure I could account for every inch of the line.)

cool, thats what i've been thinking, thank you.

This guy is good for his word......

me.......i fail :cry: sorry james.....

no problem, shit happens.

i need to revive this thread. i need help finding the high performance parts for the 45e.

can anybody link me to the proper websites?

I got my steels and friction module from Whatever It Takes transmission.
I have the Blue Plate clutches:

https://www.wittrans.com/showfilter....93&Section=140

Also, you can get aluminum accumulator pistons from Superior Transmission (http://www.superior-transmission.com/).

Not much else out there unless you start doing custom stuff. I've dreamt about the elusive Torsen LSD that GM allededly had in the first Grand Am SC/T show car.....

Here's a couple more places with parts:

http://www.importperformancetrans.co...fwd.shtml#main

http://www.bulkpart.com/Merchant2/me... e=4T40E-4T45E

http://store.phantomgrip.com/catalog...a83b dc5645b5

i finally got hold of gectek over on 60degreev6 so i can get a list of best possible upgrades for my tranny. i'm about to drop some serious cash between Bens parts and tranny parts. If i cant hit the Texas Mile in October i'll shoot for March next year. my goal is 150mph in a mile. and kicking some bmw ass around the cones!